org.apache.logging.log4j/log4j-api/2.14.0 : org/apache/logging/log4j/Logger.java

Logger
https://logging.apache.org/log4j/2.x/log4j-api/: The Apache Log4j API (The Apache Software Foundation)
Apache License, Version 2.0
Murad Ersoy
Ralph Goers (Nextiva)
Gary Gregory (Rocket Software)
Scott Deboy
Remko Popma
Nick Williams
Matt Sicker (CloudBees)
Bruce Brouwer
Mikael Ståldal (Spotify)
Carter Kozak
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache license, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the license for the specific language governing permissions and
 * limitations under the license.
 */
package org.apache.logging.log4j;

import org.apache.logging.log4j.message.EntryMessage;
import org.apache.logging.log4j.message.Message;
import org.apache.logging.log4j.message.MessageFactory;
import org.apache.logging.log4j.message.MessageFactory2;
import org.apache.logging.log4j.util.MessageSupplier;
import org.apache.logging.log4j.util.Supplier;

This is the central interface in the log4j package. Most logging operations, except configuration, are done through
this interface.
 The canonical way to obtain a Logger for a class is through LogManager.getLogger(). Typically, each class gets its own Logger named after its fully qualified class name (the default Logger name when obtained through the LogManager.getLogger() method). Thus, the simplest way to use this would be like so: 

public class MyClass {
    private static final Logger LOGGER = LogManager.getLogger();
    // ...
}

 For ease of filtering, searching, sorting, etc., it is generally a good idea to create Loggers for each class rather than sharing Loggers. Instead, Markers should be used for shared, filterable identification. 
 For service provider implementations, it is recommended to extend the AbstractLogger class rather than implementing this interface directly. 
 Since 2.4, methods have been added to the Logger interface to support lambda expressions. The new methods allow client code to lazily log messages without explicitly checking if the requested log level is enabled. For example, previously one would write: 
// pre-Java 8 style optimization: explicitly check the log level
// to make sure the expensiveOperation() method is only called if necessary
if (logger.isTraceEnabled()) {
    logger.trace("Some long-running operation returned {}", expensiveOperation());
}


With Java 8, the same effect can be achieved with a lambda expression:
// Java-8 style optimization: no need to explicitly check the log level:
// the lambda expression is not evaluated if the TRACE level is not enabled
logger.trace("Some long-running operation returned {}", () -> expensiveOperation());

 Note that although MessageSupplier is provided, using Supplier Supplier<Message>} works just the same. MessageSupplier was deprecated in 2.6 and un-deprecated in 2.8.1. Anonymous class usage of these APIs should prefer using Supplier instead. 
/**
 * This is the central interface in the log4j package. Most logging operations, except configuration, are done through
 * this interface.
 *
 * <p>
 * The canonical way to obtain a Logger for a class is through {@link LogManager#getLogger()}. Typically, each class
 * gets its own Logger named after its fully qualified class name (the default Logger name when obtained through the
 * {@link LogManager#getLogger()} method). Thus, the simplest way to use this would be like so:
 * </p>
 *
 * <pre><code>
 * public class MyClass {
 *     private static final Logger LOGGER = LogManager.getLogger();
 *     // ...
 * }
 * </code></pre>
 * <p>
 * For ease of filtering, searching, sorting, etc., it is generally a good idea to create Loggers for each class rather
 * than sharing Loggers. Instead, {@link Marker Markers} should be used for shared, filterable identification.
 * </p>
 * <p>
 * For service provider implementations, it is recommended to extend the
 * {@link org.apache.logging.log4j.spi.AbstractLogger} class rather than implementing this interface directly.
 * </p>
 *
 * Since 2.4, methods have been added to the {@code Logger} interface to support lambda expressions. The new methods
 * allow client code to lazily log messages without explicitly checking if the requested log level is enabled. For
 * example, previously one would write:
 *
 * <pre><code>
 * // pre-Java 8 style optimization: explicitly check the log level
 * // to make sure the expensiveOperation() method is only called if necessary
 * if (logger.isTraceEnabled()) {
 *     logger.trace(&quot;Some long-running operation returned {}&quot;, expensiveOperation());
 * }
 * </code></pre>
 * <p>
 * With Java 8, the same effect can be achieved with a lambda expression:
 *
 * <pre>
 * // Java-8 style optimization: no need to explicitly check the log level:
 * // the lambda expression is not evaluated if the TRACE level is not enabled
 * logger.trace(&quot;Some long-running operation returned {}&quot;, () -&gt; expensiveOperation());
 * </pre>
 *
 * <p>
 * Note that although {@link MessageSupplier} is provided, using {@link Supplier {@code Supplier<Message>}} works just the
 * same. MessageSupplier was deprecated in 2.6 and un-deprecated in 2.8.1. Anonymous class usage of these APIs
 * should prefer using Supplier instead.
 * </p>
 */
public interface Logger {

    Logs an exception or error that has been caught to a specific logging level.
Params: level – The logging Level.
t – The Throwable./**
     * Logs an exception or error that has been caught to a specific logging level.
     *
     * @param level The logging Level.
     * @param t The Throwable.
     */
    void catching(Level level, Throwable t);

    Logs an exception or error that has been caught. Normally, one may wish to provide additional information with an exception while logging it; in these cases, one would not use this method. In other cases where simply logging the fact that an exception was swallowed somewhere (e.g., at the top of the stack trace in a main() method), this method is ideal for it. 
Params: t – The Throwable./**
     * Logs an exception or error that has been caught. Normally, one may wish to provide additional information with an
     * exception while logging it; in these cases, one would not use this method. In other cases where simply logging
     * the fact that an exception was swallowed somewhere (e.g., at the top of the stack trace in a {@code main()}
     * method), this method is ideal for it.
     *
     * @param t The Throwable.
     */
    void catching(Throwable t);

    Logs a message with the specific Marker at the DEBUG level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#DEBUG DEBUG} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     */
    void debug(Marker marker, Message msg);

    Logs a message with the specific Marker at the DEBUG level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#DEBUG DEBUG} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void debug(Marker marker, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the DEBUG level with the specified Marker. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level with
     * the specified Marker. The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the
     * {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void debug(Marker marker, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the DEBUG level) with the specified Marker and including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void debug(Marker marker, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the DEBUG level. 
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#DEBUG DEBUG} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     */
    void debug(Marker marker, CharSequence message);

    Logs a message CharSequence at the DEBUG level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a message CharSequence at the {@link Level#DEBUG DEBUG} level including the stack trace of the
     * {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void debug(Marker marker, CharSequence message, Throwable t);

    Logs a message object with the DEBUG level. 
Params: marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the {@link Level#DEBUG DEBUG} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void debug(Marker marker, Object message);

    Logs a message at the DEBUG level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#DEBUG DEBUG} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void debug(Marker marker, Object message, Throwable t);

    Logs a message object with the DEBUG level. 
Params: marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the {@link Level#DEBUG DEBUG} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void debug(Marker marker, String message);

    Logs a message with parameters at the DEBUG level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#DEBUG DEBUG} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void debug(Marker marker, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
DEBUG level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#DEBUG
     * DEBUG} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void debug(Marker marker, String message, Supplier<?>... paramSuppliers);

    Logs a message at the DEBUG level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#DEBUG DEBUG} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void debug(Marker marker, String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the DEBUG level with the specified Marker. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level with
     * the specified Marker.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void debug(Marker marker, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the DEBUG level) with the specified Marker and including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void debug(Marker marker, Supplier<?> msgSupplier, Throwable t);

    Logs a message with the specific Marker at the DEBUG level. 
Params: msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#DEBUG DEBUG} level.
     *
     * @param msg the message string to be logged
     */
    void debug(Message msg);

    Logs a message with the specific Marker at the DEBUG level. 
Params: msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#DEBUG DEBUG} level.
     *
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void debug(Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the DEBUG level. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void debug(MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the DEBUG level) including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier} may or may
     * not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void debug(MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the DEBUG level. 
Params: message – the message object to log./**
     * Logs a message CharSequence with the {@link Level#DEBUG DEBUG} level.
     *
     * @param message the message object to log.
     */
    void debug(CharSequence message);

    Logs a CharSequence at the DEBUG level including the stack trace of the Throwable t passed as parameter.
Params: message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#DEBUG DEBUG} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void debug(CharSequence message, Throwable t);

    Logs a message object with the DEBUG level. 
Params: message – the message object to log./**
     * Logs a message object with the {@link Level#DEBUG DEBUG} level.
     *
     * @param message the message object to log.
     */
    void debug(Object message);

    Logs a message at the DEBUG level including the stack trace of the Throwable t passed as parameter.
Params: message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#DEBUG DEBUG} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void debug(Object message, Throwable t);

    Logs a message object with the DEBUG level. 
Params: message – the message string to log./**
     * Logs a message object with the {@link Level#DEBUG DEBUG} level.
     *
     * @param message the message string to log.
     */
    void debug(String message);

    Logs a message with parameters at the DEBUG level. 
Params: message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#DEBUG DEBUG} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void debug(String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
DEBUG level. 
Params: message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#DEBUG
     * DEBUG} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void debug(String message, Supplier<?>... paramSuppliers);

    Logs a message at the DEBUG level including the stack trace of the Throwable t passed as parameter.
Params: message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#DEBUG DEBUG} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void debug(String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the DEBUG level. 
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void debug(Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the DEBUG level) including the stack trace of the Throwable t passed as parameter.
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#DEBUG DEBUG} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void debug(Supplier<?> msgSupplier, Throwable t);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5,
            Object p6);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8);

    Logs a message with parameters at debug level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void debug(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8, Object p9);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void debug(String message, Object p0);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void debug(String message, Object p0, Object p1);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8);

    Logs a message with parameters at debug level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at debug level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void debug(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8, Object p9);

    Logs entry to a method. Used when the method in question has no parameters or when the parameters should not be
logged.
Deprecated: Use traceEntry() instead which performs the same function./**
     * Logs entry to a method. Used when the method in question has no parameters or when the parameters should not be
     * logged.
     * @deprecated Use {@link #traceEntry()} instead which performs the same function.
     */
    @Deprecated
    void entry();

    Logs entry to a method along with its parameters (consider using one of the traceEntry(...) methods instead.) 
For example:

public void doSomething(String foo, int bar) {
    LOGGER.entry(foo, bar);
    // do something
}


The use of methods such as this are more effective when combined with aspect-oriented programming or other
bytecode manipulation tools. It can be rather tedious (and messy) to use this type of method manually.

Params: params – The parameters to the method.
Deprecated: Use traceEntry(String, Object...) instead which performs the same function./**
     * Logs entry to a method along with its parameters (consider using one of the {@code traceEntry(...)} methods instead.)
     * <p>
     * For example:
     * </p>
     * <pre>
     * public void doSomething(String foo, int bar) {
     *     LOGGER.entry(foo, bar);
     *     // do something
     * }
     * </pre>
     * <p>
     * The use of methods such as this are more effective when combined with aspect-oriented programming or other
     * bytecode manipulation tools. It can be rather tedious (and messy) to use this type of method manually.
     * </p>
     *
     * @param params The parameters to the method.
     * @deprecated Use {@link #traceEntry(String, Object...)} instead which performs the same function.
     */
    @Deprecated
    void entry(Object... params);

    Logs a message with the specific Marker at the ERROR level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#ERROR ERROR} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     */
    void error(Marker marker, Message msg);

    Logs a message with the specific Marker at the ERROR level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#ERROR ERROR} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void error(Marker marker, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the ERROR level with the specified Marker. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#ERROR ERROR} level with
     * the specified Marker. The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the
     * {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void error(Marker marker, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the ERROR level) with the specified Marker and including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#ERROR ERROR} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void error(Marker marker, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the ERROR level. 
Params: marker – the marker data specific to this log statement.
message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#ERROR ERROR} level.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message CharSequence to log.
     */
    void error(Marker marker, CharSequence message);

    Logs a CharSequence at the ERROR level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement.
message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#ERROR ERROR} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void error(Marker marker, CharSequence message, Throwable t);

    Logs a message object with the ERROR level. 
Params: marker – the marker data specific to this log statement.
message – the message object to log./**
     * Logs a message object with the {@link Level#ERROR ERROR} level.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message object to log.
     */
    void error(Marker marker, Object message);

    Logs a message at the ERROR level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement.
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#ERROR ERROR} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void error(Marker marker, Object message, Throwable t);

    Logs a message object with the ERROR level. 
Params: marker – the marker data specific to this log statement.
message – the message object to log./**
     * Logs a message object with the {@link Level#ERROR ERROR} level.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message object to log.
     */
    void error(Marker marker, String message);

    Logs a message with parameters at the ERROR level. 
Params: marker – the marker data specific to this log statement.
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#ERROR ERROR} level.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void error(Marker marker, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
ERROR level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#ERROR
     * ERROR} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void error(Marker marker, String message, Supplier<?>... paramSuppliers);

    Logs a message at the ERROR level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement.
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#ERROR ERROR} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void error(Marker marker, String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the ERROR level with the specified Marker. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#ERROR ERROR} level with
     * the specified Marker.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void error(Marker marker, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the ERROR level) with the specified Marker and including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#ERROR ERROR} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void error(Marker marker, Supplier<?> msgSupplier, Throwable t);

    Logs a message with the specific Marker at the ERROR level. 
Params: msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#ERROR ERROR} level.
     *
     * @param msg the message string to be logged
     */
    void error(Message msg);

    Logs a message with the specific Marker at the ERROR level. 
Params: msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#ERROR ERROR} level.
     *
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void error(Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the ERROR level. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#ERROR ERROR} level. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void error(MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the ERROR level) including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#ERROR ERROR} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier} may or may
     * not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void error(MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the ERROR level. 
Params: message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#ERROR ERROR} level.
     *
     * @param message the message CharSequence to log.
     */
    void error(CharSequence message);

    Logs a CharSequence at the ERROR level including the stack trace of the Throwable t passed as parameter.
Params: message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#ERROR ERROR} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void error(CharSequence message, Throwable t);

    Logs a message object with the ERROR level. 
Params: message – the message object to log./**
     * Logs a message object with the {@link Level#ERROR ERROR} level.
     *
     * @param message the message object to log.
     */
    void error(Object message);

    Logs a message at the ERROR level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#ERROR ERROR} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void error(Object message, Throwable t);

    Logs a message object with the ERROR level. 
Params: message – the message string to log./**
     * Logs a message object with the {@link Level#ERROR ERROR} level.
     *
     * @param message the message string to log.
     */
    void error(String message);

    Logs a message with parameters at the ERROR level. 
Params: message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#ERROR ERROR} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void error(String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
ERROR level. 
Params: message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#ERROR
     * ERROR} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void error(String message, Supplier<?>... paramSuppliers);

    Logs a message at the ERROR level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#ERROR ERROR} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void error(String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the ERROR level. 
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#ERROR ERROR} level.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void error(Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the ERROR level) including the stack trace of the Throwable t passed as parameter.
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#ERROR ERROR} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void error(Supplier<?> msgSupplier, Throwable t);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void error(Marker marker, String message, Object p0);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5,
            Object p6);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8);

    Logs a message with parameters at error level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void error(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8, Object p9);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void error(String message, Object p0);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void error(String message, Object p0, Object p1);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8);

    Logs a message with parameters at error level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at error level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void error(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8, Object p9);

    Logs exit from a method. Used for methods that do not return anything.
Deprecated: Use traceExit() instead which performs the same function./**
     * Logs exit from a method. Used for methods that do not return anything.
     * @deprecated Use {@link #traceExit()} instead which performs the same function.
     */
    @Deprecated
    void exit();

    Logs exiting from a method with the result. This may be coded as:
return LOGGER.exit(myResult);

Params: result – The result being returned from the method call.
Type parameters: <R> – The type of the parameter and object being returned.
Returns: the result.
Deprecated: Use traceExit(Object) instead which performs the same function./**
     * Logs exiting from a method with the result. This may be coded as:
     *
     * <pre>
     * return LOGGER.exit(myResult);
     * </pre>
     *
     * @param <R> The type of the parameter and object being returned.
     * @param result The result being returned from the method call.
     * @return the result.
     * @deprecated Use {@link #traceExit(Object)} instead which performs the same function.
     */
    @Deprecated
    <R> R exit(R result);

    Logs a message with the specific Marker at the FATAL level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#FATAL FATAL} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     */
    void fatal(Marker marker, Message msg);

    Logs a message with the specific Marker at the FATAL level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#FATAL FATAL} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void fatal(Marker marker, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the FATAL level with the specified Marker. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#FATAL FATAL} level with
     * the specified Marker. The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the
     * {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void fatal(Marker marker, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the FATAL level) with the specified Marker and including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#FATAL FATAL} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void fatal(Marker marker, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the FATAL level. 
Params: marker – The marker data specific to this log statement.
message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#FATAL FATAL} level.
     *
     * @param marker The marker data specific to this log statement.
     * @param message the message CharSequence to log.
     */
    void fatal(Marker marker, CharSequence message);

    Logs a CharSequence at the FATAL level including the stack trace of the Throwable t passed as parameter.
Params: marker – The marker data specific to this log statement.
message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#FATAL FATAL} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker The marker data specific to this log statement.
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void fatal(Marker marker, CharSequence message, Throwable t);

    Logs a message object with the FATAL level. 
Params: marker – The marker data specific to this log statement.
message – the message object to log./**
     * Logs a message object with the {@link Level#FATAL FATAL} level.
     *
     * @param marker The marker data specific to this log statement.
     * @param message the message object to log.
     */
    void fatal(Marker marker, Object message);

    Logs a message at the FATAL level including the stack trace of the Throwable t passed as parameter.
Params: marker – The marker data specific to this log statement.
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#FATAL FATAL} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker The marker data specific to this log statement.
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void fatal(Marker marker, Object message, Throwable t);

    Logs a message object with the FATAL level. 
Params: marker – The marker data specific to this log statement.
message – the message object to log./**
     * Logs a message object with the {@link Level#FATAL FATAL} level.
     *
     * @param marker The marker data specific to this log statement.
     * @param message the message object to log.
     */
    void fatal(Marker marker, String message);

    Logs a message with parameters at the FATAL level. 
Params: marker – The marker data specific to this log statement.
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#FATAL FATAL} level.
     *
     * @param marker The marker data specific to this log statement.
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void fatal(Marker marker, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
FATAL level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#FATAL
     * FATAL} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void fatal(Marker marker, String message, Supplier<?>... paramSuppliers);

    Logs a message at the FATAL level including the stack trace of the Throwable t passed as parameter.
Params: marker – The marker data specific to this log statement.
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#FATAL FATAL} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker The marker data specific to this log statement.
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void fatal(Marker marker, String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the FATAL level with the specified Marker. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#FATAL FATAL} level with
     * the specified Marker.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void fatal(Marker marker, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the FATAL level) with the specified Marker and including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#FATAL FATAL} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void fatal(Marker marker, Supplier<?> msgSupplier, Throwable t);

    Logs a message with the specific Marker at the FATAL level. 
Params: msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#FATAL FATAL} level.
     *
     * @param msg the message string to be logged
     */
    void fatal(Message msg);

    Logs a message with the specific Marker at the FATAL level. 
Params: msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#FATAL FATAL} level.
     *
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void fatal(Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the FATAL level. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#FATAL FATAL} level. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void fatal(MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the FATAL level) including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#FATAL FATAL} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier} may or may
     * not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void fatal(MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the FATAL level. 
Params: message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#FATAL FATAL} level.
     *
     * @param message the message CharSequence to log.
     */
    void fatal(CharSequence message);

    Logs a CharSequence at the FATAL level including the stack trace of the Throwable t passed as parameter.
Params: message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#FATAL FATAL} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void fatal(CharSequence message, Throwable t);

    Logs a message object with the FATAL level. 
Params: message – the message object to log./**
     * Logs a message object with the {@link Level#FATAL FATAL} level.
     *
     * @param message the message object to log.
     */
    void fatal(Object message);

    Logs a message at the FATAL level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#FATAL FATAL} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void fatal(Object message, Throwable t);

    Logs a message object with the FATAL level. 
Params: message – the message string to log./**
     * Logs a message object with the {@link Level#FATAL FATAL} level.
     *
     * @param message the message string to log.
     */
    void fatal(String message);

    Logs a message with parameters at the FATAL level. 
Params: message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#FATAL FATAL} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void fatal(String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
FATAL level. 
Params: message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#FATAL
     * FATAL} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void fatal(String message, Supplier<?>... paramSuppliers);

    Logs a message at the FATAL level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#FATAL FATAL} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void fatal(String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the FATAL level. 
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#FATAL FATAL} level.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void fatal(Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the FATAL level) including the stack trace of the Throwable t passed as parameter.
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#FATAL FATAL} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void fatal(Supplier<?> msgSupplier, Throwable t);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5,
            Object p6);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8);

    Logs a message with parameters at fatal level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void fatal(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8, Object p9);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void fatal(String message, Object p0);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8);

    Logs a message with parameters at fatal level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at fatal level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void fatal(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8, Object p9);

    Gets the Level associated with the Logger.
Returns: the Level associate with the Logger./**
     * Gets the Level associated with the Logger.
     *
     * @return the Level associate with the Logger.
     */
    Level getLevel();

    Gets the message factory used to convert message Objects and Strings/CharSequences into actual log Messages. Since version 2.6, Log4j internally uses message factories that implement the MessageFactory2 interface. From version 2.6.2, the return type of this method was changed from MessageFactory to <MF extends MessageFactory> MF. The returned factory will always implement MessageFactory2, but the return type of this method could not be changed to MessageFactory2 without breaking binary compatibility. 
Returns: the message factory, as an instance of MessageFactory2/**
     * Gets the message factory used to convert message Objects and Strings/CharSequences into actual log Messages.
     *
     * Since version 2.6, Log4j internally uses message factories that implement the {@link MessageFactory2} interface.
     * From version 2.6.2, the return type of this method was changed from {@link MessageFactory} to
     * {@code <MF extends MessageFactory> MF}. The returned factory will always implement {@link MessageFactory2},
     * but the return type of this method could not be changed to {@link MessageFactory2} without breaking binary
     * compatibility.
     *
     * @return the message factory, as an instance of {@link MessageFactory2}
     */
    <MF extends MessageFactory> MF getMessageFactory();

    Gets the logger name.
Returns: the logger name./**
     * Gets the logger name.
     *
     * @return the logger name.
     */
    String getName();

    Logs a message with the specific Marker at the INFO level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#INFO INFO} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     */
    void info(Marker marker, Message msg);

    Logs a message with the specific Marker at the INFO level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#INFO INFO} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void info(Marker marker, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the INFO level with the specified Marker. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#INFO INFO} level with the
     * specified Marker. The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the
     * {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void info(Marker marker, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the INFO level) with the specified Marker and including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#INFO INFO} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void info(Marker marker, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the INFO level. 
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#INFO INFO} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     */
    void info(Marker marker, CharSequence message);

    Logs a CharSequence at the INFO level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#INFO INFO} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void info(Marker marker, CharSequence message, Throwable t);

    Logs a message object with the INFO level. 
Params: marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the {@link Level#INFO INFO} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void info(Marker marker, Object message);

    Logs a message at the INFO level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#INFO INFO} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void info(Marker marker, Object message, Throwable t);

    Logs a message object with the INFO level. 
Params: marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the {@link Level#INFO INFO} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void info(Marker marker, String message);

    Logs a message with parameters at the INFO level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#INFO INFO} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void info(Marker marker, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
INFO level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#INFO
     * INFO} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void info(Marker marker, String message, Supplier<?>... paramSuppliers);

    Logs a message at the INFO level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#INFO INFO} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void info(Marker marker, String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the INFO level with the specified Marker. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#INFO INFO} level with the
     * specified Marker.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void info(Marker marker, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the INFO level) with the specified Marker and including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#INFO INFO} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void info(Marker marker, Supplier<?> msgSupplier, Throwable t);

    Logs a message with the specific Marker at the INFO level. 
Params: msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#INFO INFO} level.
     *
     * @param msg the message string to be logged
     */
    void info(Message msg);

    Logs a message with the specific Marker at the INFO level. 
Params: msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#INFO INFO} level.
     *
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void info(Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the INFO level. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#INFO INFO} level. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void info(MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the INFO level) including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#INFO INFO} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier} may or may
     * not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void info(MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the INFO level. 
Params: message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#INFO INFO} level.
     *
     * @param message the message CharSequence to log.
     */
    void info(CharSequence message);

    Logs a CharSequence at the INFO level including the stack trace of the Throwable t passed as parameter.
Params: message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#INFO INFO} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void info(CharSequence message, Throwable t);

    Logs a message object with the INFO level. 
Params: message – the message object to log./**
     * Logs a message object with the {@link Level#INFO INFO} level.
     *
     * @param message the message object to log.
     */
    void info(Object message);

    Logs a message at the INFO level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#INFO INFO} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void info(Object message, Throwable t);

    Logs a message object with the INFO level. 
Params: message – the message string to log./**
     * Logs a message object with the {@link Level#INFO INFO} level.
     *
     * @param message the message string to log.
     */
    void info(String message);

    Logs a message with parameters at the INFO level. 
Params: message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#INFO INFO} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void info(String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
INFO level. 
Params: message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#INFO
     * INFO} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void info(String message, Supplier<?>... paramSuppliers);

    Logs a message at the INFO level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#INFO INFO} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void info(String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the INFO level. 
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#INFO INFO} level.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void info(Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the INFO level) including the stack trace of the Throwable t passed as parameter.
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#INFO INFO} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void info(Supplier<?> msgSupplier, Throwable t);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void info(Marker marker, String message, Object p0);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5,
            Object p6);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8);

    Logs a message with parameters at info level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void info(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8, Object p9);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void info(String message, Object p0);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void info(String message, Object p0, Object p1);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8);

    Logs a message with parameters at info level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at info level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void info(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8, Object p9);

    Checks whether this Logger is enabled for the DEBUG Level. 
Returns: boolean - true if this Logger is enabled for level DEBUG, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#DEBUG DEBUG} Level.
     *
     * @return boolean - {@code true} if this Logger is enabled for level DEBUG, {@code false} otherwise.
     */
    boolean isDebugEnabled();

    Checks whether this Logger is enabled for the DEBUG Level. 
Params: marker – The Marker to check
Returns: boolean - true if this Logger is enabled for level DEBUG, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#DEBUG DEBUG} Level.
     *
     * @param marker The Marker to check
     * @return boolean - {@code true} if this Logger is enabled for level DEBUG, {@code false} otherwise.
     */
    boolean isDebugEnabled(Marker marker);

    Checks whether this Logger is enabled for the given Level.
 Note that passing in OFF always returns true. 
Params: level – the Level to check
Returns: boolean - true if this Logger is enabled for level, false otherwise./**
     * Checks whether this Logger is enabled for the given Level.
     * <p>
     * Note that passing in {@link Level#OFF OFF} always returns {@code true}.
     * </p>
     *
     * @param level the Level to check
     * @return boolean - {@code true} if this Logger is enabled for level, {@code false} otherwise.
     */
    boolean isEnabled(Level level);

    Checks whether this Logger is enabled for the given Level and Marker.
Params: level – The Level to check
marker – The Marker to check
Returns: boolean - true if this Logger is enabled for level and marker, false otherwise./**
     * Checks whether this Logger is enabled for the given Level and Marker.
     *
     * @param level The Level to check
     * @param marker The Marker to check
     * @return boolean - {@code true} if this Logger is enabled for level and marker, {@code false} otherwise.
     */
    boolean isEnabled(Level level, Marker marker);

    Checks whether this Logger is enabled for the ERROR Level. 
Returns: boolean - true if this Logger is enabled for level ERROR, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#ERROR ERROR} Level.
     *
     * @return boolean - {@code true} if this Logger is enabled for level {@link Level#ERROR ERROR}, {@code false}
     *         otherwise.
     */
    boolean isErrorEnabled();

    Checks whether this Logger is enabled for the ERROR Level. 
Params: marker – The Marker to check
Returns: boolean - true if this Logger is enabled for level ERROR, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#ERROR ERROR} Level.
     *
     * @param marker The Marker to check
     * @return boolean - {@code true} if this Logger is enabled for level {@link Level#ERROR ERROR}, {@code false}
     *         otherwise.
     */
    boolean isErrorEnabled(Marker marker);

    Checks whether this Logger is enabled for the FATAL Level. 
Returns: boolean - true if this Logger is enabled for level FATAL, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#FATAL FATAL} Level.
     *
     * @return boolean - {@code true} if this Logger is enabled for level {@link Level#FATAL FATAL}, {@code false}
     *         otherwise.
     */
    boolean isFatalEnabled();

    Checks whether this Logger is enabled for the FATAL Level. 
Params: marker – The Marker to check
Returns: boolean - true if this Logger is enabled for level FATAL, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#FATAL FATAL} Level.
     *
     * @param marker The Marker to check
     * @return boolean - {@code true} if this Logger is enabled for level {@link Level#FATAL FATAL}, {@code false}
     *         otherwise.
     */
    boolean isFatalEnabled(Marker marker);

    Checks whether this Logger is enabled for the INFO Level. 
Returns: boolean - true if this Logger is enabled for level INFO, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#INFO INFO} Level.
     *
     * @return boolean - {@code true} if this Logger is enabled for level INFO, {@code false} otherwise.
     */
    boolean isInfoEnabled();

    Checks whether this Logger is enabled for the INFO Level. 
Params: marker – The Marker to check
Returns: boolean - true if this Logger is enabled for level INFO, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#INFO INFO} Level.
     *
     * @param marker The Marker to check
     * @return boolean - {@code true} if this Logger is enabled for level INFO, {@code false} otherwise.
     */
    boolean isInfoEnabled(Marker marker);

    Checks whether this Logger is enabled for the TRACE level. 
Returns: boolean - true if this Logger is enabled for level TRACE, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#TRACE TRACE} level.
     *
     * @return boolean - {@code true} if this Logger is enabled for level TRACE, {@code false} otherwise.
     */
    boolean isTraceEnabled();

    Checks whether this Logger is enabled for the TRACE level. 
Params: marker – The Marker to check
Returns: boolean - true if this Logger is enabled for level TRACE, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#TRACE TRACE} level.
     *
     * @param marker The Marker to check
     * @return boolean - {@code true} if this Logger is enabled for level TRACE, {@code false} otherwise.
     */
    boolean isTraceEnabled(Marker marker);

    Checks whether this Logger is enabled for the WARN Level. 
Returns: boolean - true if this Logger is enabled for level WARN, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#WARN WARN} Level.
     *
     * @return boolean - {@code true} if this Logger is enabled for level {@link Level#WARN WARN}, {@code false}
     *         otherwise.
     */
    boolean isWarnEnabled();

    Checks whether this Logger is enabled for the WARN Level. 
Params: marker – The Marker to check
Returns: boolean - true if this Logger is enabled for level WARN, false otherwise./**
     * Checks whether this Logger is enabled for the {@link Level#WARN WARN} Level.
     *
     * @param marker The Marker to check
     * @return boolean - {@code true} if this Logger is enabled for level {@link Level#WARN WARN}, {@code false}
     *         otherwise.
     */
    boolean isWarnEnabled(Marker marker);

    Logs a message with the specific Marker at the given level.
Params: level – the logging level
marker – the marker data specific to this log statement
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the given level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     */
    void log(Level level, Marker marker, Message msg);

    Logs a message with the specific Marker at the given level.
Params: level – the logging level
marker – the marker data specific to this log statement
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the given level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void log(Level level, Marker marker, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the specified level with the specified Marker. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: level – the logging level
marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the specified level with the specified
     * Marker. The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the
     * {@code Message}.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void log(Level level, Marker marker, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the specified level) with the specified Marker and including the stack log of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: level – the logging level
marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the specified level) with the specified Marker and
     * including the stack log of the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier}
     * may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void log(Level level, Marker marker, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the given level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message CharSequence to log./**
     * Logs a message CharSequence with the given level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     */
    void log(Level level, Marker marker, CharSequence message);

    Logs a CharSequence at the given level including the stack trace of the Throwable t passed as
parameter.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the given level including the stack trace of the {@link Throwable} <code>t</code> passed as
     * parameter.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void log(Level level, Marker marker, CharSequence message, Throwable t);

    Logs a message object with the given level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the given level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void log(Level level, Marker marker, Object message);

    Logs a message at the given level including the stack trace of the Throwable t passed as
parameter.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the given level including the stack trace of the {@link Throwable} <code>t</code> passed as
     * parameter.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void log(Level level, Marker marker, Object message, Throwable t);

    Logs a message object with the given level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the given level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void log(Level level, Marker marker, String message);

    Logs a message with parameters at the given level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the given level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void log(Level level, Marker marker, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void log(Level level, Marker marker, String message, Supplier<?>... paramSuppliers);

    Logs a message at the given level including the stack trace of the Throwable t passed as
parameter.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the given level including the stack trace of the {@link Throwable} <code>t</code> passed as
     * parameter.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void log(Level level, Marker marker, String message, Throwable t);

    Logs a message (only to be constructed if the logging level is the specified level) with the specified Marker.
Params: level – the logging level
marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the specified level) with the specified Marker.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void log(Level level, Marker marker, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the specified level) with the specified Marker and including the stack log of the Throwable t passed as parameter.
Params: level – the logging level
marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the specified level) with the specified Marker and
     * including the stack log of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void log(Level level, Marker marker, Supplier<?> msgSupplier, Throwable t);

    Logs a message with the specific Marker at the given level.
Params: level – the logging level
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the given level.
     *
     * @param level the logging level
     * @param msg the message string to be logged
     */
    void log(Level level, Message msg);

    Logs a message with the specific Marker at the given level.
Params: level – the logging level
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the given level.
     *
     * @param level the logging level
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void log(Level level, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the specified level. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: level – the logging level
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the specified level. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param level the logging level
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void log(Level level, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the specified level) including the stack log of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: level – the logging level
msgSupplier – A function, which when called, produces the desired log message.
t – the exception to log, including its stack log.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the specified level) including the stack log of
     * the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier} may or may not use the
     * {@link MessageFactory} to construct the {@code Message}.
     *
     * @param level the logging level
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t the exception to log, including its stack log.
     * @since 2.4
     */
    void log(Level level, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the given level.
Params: level – the logging level
message – the message CharSequence to log./**
     * Logs a message CharSequence with the given level.
     *
     * @param level the logging level
     * @param message the message CharSequence to log.
     */
    void log(Level level, CharSequence message);

    Logs a CharSequence at the given level including the stack trace of the Throwable t passed as
parameter.
Params: level – the logging level
message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the given level including the stack trace of the {@link Throwable} <code>t</code> passed as
     * parameter.
     *
     * @param level the logging level
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void log(Level level, CharSequence message, Throwable t);

    Logs a message object with the given level.
Params: level – the logging level
message – the message object to log./**
     * Logs a message object with the given level.
     *
     * @param level the logging level
     * @param message the message object to log.
     */
    void log(Level level, Object message);

    Logs a message at the given level including the stack trace of the Throwable t passed as
parameter.
Params: level – the logging level
message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the given level including the stack trace of the {@link Throwable} <code>t</code> passed as
     * parameter.
     *
     * @param level the logging level
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void log(Level level, Object message, Throwable t);

    Logs a message object with the given level.
Params: level – the logging level
message – the message string to log./**
     * Logs a message object with the given level.
     *
     * @param level the logging level
     * @param message the message string to log.
     */
    void log(Level level, String message);

    Logs a message with parameters at the given level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the given level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void log(Level level, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void log(Level level, String message, Supplier<?>... paramSuppliers);

    Logs a message at the given level including the stack trace of the Throwable t passed as
parameter.
Params: level – the logging level
message – the message to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the given level including the stack trace of the {@link Throwable} <code>t</code> passed as
     * parameter.
     *
     * @param level the logging level
     * @param message the message to log.
     * @param t the exception to log, including its stack trace.
     */
    void log(Level level, String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the specified level.
Params: level – the logging level
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the specified level.
     *
     * @param level the logging level
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void log(Level level, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the specified level) including the stack log of the Throwable t passed as parameter.
Params: level – the logging level
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – the exception to log, including its stack log.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the specified level) including the stack log of
     * the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param level the logging level
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t the exception to log, including its stack log.
     * @since 2.4
     */
    void log(Level level, Supplier<?> msgSupplier, Throwable t);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5,
            Object p6);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8);

    Logs a message with parameters at the specified level.
Params: level – the logging level
marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void log(Level level, Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8, Object p9);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void log(Level level, String message, Object p0);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8);

    Logs a message with parameters at the specified level.
Params: level – the logging level
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at the specified level.
     *
     * @param level the logging level
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void log(Level level, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8, Object p9);

    Logs a formatted message using the specified format string and arguments.
Params: level – The logging Level.
marker – the marker data specific to this log statement.
format – The format String.
params – Arguments specified by the format./**
     * Logs a formatted message using the specified format string and arguments.
     *
     * @param level The logging Level.
     * @param marker the marker data specific to this log statement.
     * @param format The format String.
     * @param params Arguments specified by the format.
     */
    void printf(Level level, Marker marker, String format, Object... params);

    Logs a formatted message using the specified format string and arguments.
Params: level – The logging Level.
format – The format String.
params – Arguments specified by the format./**
     * Logs a formatted message using the specified format string and arguments.
     *
     * @param level The logging Level.
     * @param format The format String.
     * @param params Arguments specified by the format.
     */
    void printf(Level level, String format, Object... params);

    Logs an exception or error to be thrown. This may be coded as:
throw logger.throwing(Level.DEBUG, myException);

Params: level – The logging Level.
t – The Throwable.
Type parameters: <T> – the Throwable type.
Returns: the Throwable./**
     * Logs an exception or error to be thrown. This may be coded as:
     *
     * <pre>
     * throw logger.throwing(Level.DEBUG, myException);
     * </pre>
     *
     * @param <T> the Throwable type.
     * @param level The logging Level.
     * @param t The Throwable.
     * @return the Throwable.
     */
    <T extends Throwable> T throwing(Level level, T t);

    Logs an exception or error to be thrown. This may be coded as:
throw logger.throwing(myException);

Params: t – The Throwable.
Type parameters: <T> – the Throwable type.
Returns: the Throwable./**
     * Logs an exception or error to be thrown. This may be coded as:
     *
     * <pre>
     * throw logger.throwing(myException);
     * </pre>
     *
     * @param <T> the Throwable type.
     * @param t The Throwable.
     * @return the Throwable.
     */
    <T extends Throwable> T throwing(T t);

    Logs a message with the specific Marker at the TRACE level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#TRACE TRACE} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     */
    void trace(Marker marker, Message msg);

    Logs a message with the specific Marker at the TRACE level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#TRACE TRACE} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void trace(Marker marker, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the TRACE level with the specified Marker. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#TRACE TRACE} level with
     * the specified Marker. The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the
     * {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void trace(Marker marker, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the TRACE level) with the specified Marker and including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#TRACE TRACE} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void trace(Marker marker, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the TRACE level. 
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#TRACE TRACE} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     */
    void trace(Marker marker, CharSequence message);

    Logs a CharSequence at the TRACE level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log.
t – the exception to log, including its stack trace.
See Also: debug(String)/**
     * Logs a CharSequence at the {@link Level#TRACE TRACE} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     * @see #debug(String)
     */
    void trace(Marker marker, CharSequence message, Throwable t);

    Logs a message object with the TRACE level. 
Params: marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the {@link Level#TRACE TRACE} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void trace(Marker marker, Object message);

    Logs a message at the TRACE level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message object to log.
t – the exception to log, including its stack trace.
See Also: debug(String)/**
     * Logs a message at the {@link Level#TRACE TRACE} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     * @see #debug(String)
     */
    void trace(Marker marker, Object message, Throwable t);

    Logs a message object with the TRACE level. 
Params: marker – the marker data specific to this log statement
message – the message string to log./**
     * Logs a message object with the {@link Level#TRACE TRACE} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message string to log.
     */
    void trace(Marker marker, String message);

    Logs a message with parameters at the TRACE level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#TRACE TRACE} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void trace(Marker marker, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
TRACE level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#TRACE
     * TRACE} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void trace(Marker marker, String message, Supplier<?>... paramSuppliers);

    Logs a message at the TRACE level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message object to log.
t – the exception to log, including its stack trace.
See Also: debug(String)/**
     * Logs a message at the {@link Level#TRACE TRACE} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     * @see #debug(String)
     */
    void trace(Marker marker, String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the TRACE level with the specified Marker. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#TRACE TRACE} level with
     * the specified Marker.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void trace(Marker marker, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the TRACE level) with the specified Marker and including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#TRACE TRACE} level) with the
     * specified Marker and including the stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void trace(Marker marker, Supplier<?> msgSupplier, Throwable t);

    Logs a message with the specific Marker at the TRACE level. 
Params: msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#TRACE TRACE} level.
     *
     * @param msg the message string to be logged
     */
    void trace(Message msg);

    Logs a message with the specific Marker at the TRACE level. 
Params: msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#TRACE TRACE} level.
     *
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void trace(Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the TRACE level. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#TRACE TRACE} level. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void trace(MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the TRACE level) including the stack trace of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#TRACE TRACE} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier} may or may
     * not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void trace(MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the TRACE level. 
Params: message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#TRACE TRACE} level.
     *
     * @param message the message CharSequence to log.
     */
    void trace(CharSequence message);

    Logs a CharSequence at the TRACE level including the stack trace of the Throwable t passed as parameter.
Params: message – the message CharSequence to log.
t – the exception to log, including its stack trace.
See Also: debug(String)/**
     * Logs a CharSequence at the {@link Level#TRACE TRACE} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     * @see #debug(String)
     */
    void trace(CharSequence message, Throwable t);

    Logs a message object with the TRACE level. 
Params: message – the message object to log./**
     * Logs a message object with the {@link Level#TRACE TRACE} level.
     *
     * @param message the message object to log.
     */
    void trace(Object message);

    Logs a message at the TRACE level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace.
See Also: debug(String)/**
     * Logs a message at the {@link Level#TRACE TRACE} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     * @see #debug(String)
     */
    void trace(Object message, Throwable t);

    Logs a message object with the TRACE level. 
Params: message – the message string to log./**
     * Logs a message object with the {@link Level#TRACE TRACE} level.
     *
     * @param message the message string to log.
     */
    void trace(String message);

    Logs a message with parameters at the TRACE level. 
Params: message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#TRACE TRACE} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void trace(String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
TRACE level. 
Params: message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#TRACE
     * TRACE} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void trace(String message, Supplier<?>... paramSuppliers);

    Logs a message at the TRACE level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace.
See Also: debug(String)/**
     * Logs a message at the {@link Level#TRACE TRACE} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     * @see #debug(String)
     */
    void trace(String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the TRACE level. 
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#TRACE TRACE} level.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void trace(Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the TRACE level) including the stack trace of the Throwable t passed as parameter.
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – the exception to log, including its stack trace.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#TRACE TRACE} level) including the
     * stack trace of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t the exception to log, including its stack trace.
     * @since 2.4
     */
    void trace(Supplier<?> msgSupplier, Throwable t);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5,
            Object p6);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8);

    Logs a message with parameters at trace level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void trace(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8, Object p9);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void trace(String message, Object p0);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void trace(String message, Object p0, Object p1);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8);

    Logs a message with parameters at trace level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at trace level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void trace(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8, Object p9);

    Logs entry to a method. Used when the method in question has no parameters or when the parameters should not be
logged.
Returns: built message
Since: 2.6/**
     * Logs entry to a method. Used when the method in question has no parameters or when the parameters should not be
     * logged.
     *
     * @return built message
     * @since 2.6
     */
    EntryMessage traceEntry();

    Logs entry to a method along with its parameters. For example,

public void doSomething(String foo, int bar) {
    LOGGER.traceEntry("Parameters: {} and {}", foo, bar);
    // do something
}

or:

public int doSomething(String foo, int bar) {
    Message m = LOGGER.traceEntry("doSomething(foo={}, bar={})", foo, bar);
    // do something
    return traceExit(m, value);
}

Params: format – The format String for the parameters.
params – The parameters to the method.
Returns: The built Message
Since: 2.6/**
     * Logs entry to a method along with its parameters. For example,
     *
     * <pre><code>
     * public void doSomething(String foo, int bar) {
     *     LOGGER.traceEntry("Parameters: {} and {}", foo, bar);
     *     // do something
     * }
     * </code></pre>
     * or:
     * <pre><code>
     * public int doSomething(String foo, int bar) {
     *     Message m = LOGGER.traceEntry("doSomething(foo={}, bar={})", foo, bar);
     *     // do something
     *     return traceExit(m, value);
     * }
     * </code></pre>
     *
     * @param format The format String for the parameters.
     * @param params The parameters to the method.
     * @return The built Message
     *
     * @since 2.6
     */
    EntryMessage traceEntry(String format, Object... params);

    Logs entry to a method along with its parameters. For example,

public void doSomething(Request foo) {
    LOGGER.traceEntry(()->gson.toJson(foo));
    // do something
}


Params: paramSuppliers – The Suppliers for the parameters to the method.
Returns: built message
Since: 2.6/**
     * Logs entry to a method along with its parameters. For example,
     *
     * <pre>
     * <code>
     * public void doSomething(Request foo) {
     *     LOGGER.traceEntry(()->gson.toJson(foo));
     *     // do something
     * }
     * </code>
     * </pre>
     *
     * @param paramSuppliers The Suppliers for the parameters to the method.
     * @return built message
     *
     * @since 2.6
     */
    EntryMessage traceEntry(Supplier<?>... paramSuppliers);

    Logs entry to a method along with its parameters. For example,

public void doSomething(String foo, int bar) {
    LOGGER.traceEntry("Parameters: {} and {}", ()->gson.toJson(foo), ()-> bar);
    // do something
}


Params: format – The format String for the parameters.
paramSuppliers – The Suppliers for the parameters to the method.
Returns: built message
Since: 2.6/**
     * Logs entry to a method along with its parameters. For example,
     *
     * <pre>
     * <code>
     * public void doSomething(String foo, int bar) {
     *     LOGGER.traceEntry("Parameters: {} and {}", ()->gson.toJson(foo), ()-> bar);
     *     // do something
     * }
     * </code>
     * </pre>
     *
     * @param format The format String for the parameters.
     * @param paramSuppliers The Suppliers for the parameters to the method.
     * @return built message
     *
     * @since 2.6
     */
    EntryMessage traceEntry(String format, Supplier<?>... paramSuppliers);

    Logs entry to a method using a Message to describe the parameters.

public void doSomething(Request foo) {
    LOGGER.traceEntry(new JsonMessage(foo));
    // do something
}

 Avoid passing a ReusableMessage to this method (therefore, also avoid passing messages created by calling logger.getMessageFactory().newMessage("some message")): Log4j will replace such messages with an immutable message to prevent situations where the reused message instance is modified by subsequent calls to the logger before the returned EntryMessage is fully processed. 
Params: message – The message. Avoid specifying a ReusableMessage, use immutable messages instead.
See Also: ReusableMessage
Returns: the built message
Since: 2.6/**
     * Logs entry to a method using a Message to describe the parameters.
     * <pre><code>
     * public void doSomething(Request foo) {
     *     LOGGER.traceEntry(new JsonMessage(foo));
     *     // do something
     * }
     * </code></pre>
     * <p>
     * Avoid passing a {@code ReusableMessage} to this method (therefore, also avoid passing messages created by
     * calling {@code logger.getMessageFactory().newMessage("some message")}): Log4j will replace such messages with
     * an immutable message to prevent situations where the reused message instance is modified by subsequent calls to
     * the logger before the returned {@code EntryMessage} is fully processed.
     * </p>
     *
     * @param message The message. Avoid specifying a ReusableMessage, use immutable messages instead.
     * @return the built message
     *
     * @since 2.6
     * @see org.apache.logging.log4j.message.ReusableMessage
     */
    EntryMessage traceEntry(Message message);

    Logs exit from a method. Used for methods that do not return anything.
Since: 2.6/**
     * Logs exit from a method. Used for methods that do not return anything.
     *
     * @since 2.6
     */
    void traceExit();

    Logs exiting from a method with the result. This may be coded as:

return LOGGER.traceExit(myResult);

Params: result – The result being returned from the method call.
Type parameters: <R> – The type of the parameter and object being returned.
Returns: the result.
Since: 2.6/**
     * Logs exiting from a method with the result. This may be coded as:
     *
     * <pre><code>
     * return LOGGER.traceExit(myResult);
     * </code></pre>
     *
     * @param <R> The type of the parameter and object being returned.
     * @param result The result being returned from the method call.
     * @return the result.
     *
     * @since 2.6
     */
    <R> R traceExit(R result);

    Logs exiting from a method with the result. This may be coded as:

return LOGGER.traceExit("Result: {}", myResult);

Params: format – The format String for the result.
result – The result being returned from the method call.
Type parameters: <R> – The type of the parameter and object being returned.
Returns: the result.
Since: 2.6/**
     * Logs exiting from a method with the result. This may be coded as:
     *
     * <pre><code>
     * return LOGGER.traceExit("Result: {}", myResult);
     * </code></pre>
     *
     * @param <R> The type of the parameter and object being returned.
     * @param format The format String for the result.
     * @param result The result being returned from the method call.
     * @return the result.
     *
     * @since 2.6
     */
    <R> R traceExit(String format, R result);

    Logs exiting from a method with no result. Allows custom formatting of the result. This may be coded as:

public long doSomething(int a, int b) {
   EntryMessage m = traceEntry("doSomething(a={}, b={})", a, b);
   // ...
   return LOGGER.traceExit(m);
}

Params: message – The Message containing the formatted result.
Since: 2.6/**
     * Logs exiting from a method with no result. Allows custom formatting of the result. This may be coded as:
     *
     * <pre><code>
     * public long doSomething(int a, int b) {
     *    EntryMessage m = traceEntry("doSomething(a={}, b={})", a, b);
     *    // ...
     *    return LOGGER.traceExit(m);
     * }
     * </code></pre>
     * @param message The Message containing the formatted result.
     *
     * @since 2.6
     */
    void traceExit(EntryMessage message);

    Logs exiting from a method with the result. Allows custom formatting of the result. This may be coded as:

public long doSomething(int a, int b) {
   EntryMessage m = traceEntry("doSomething(a={}, b={})", a, b);
   // ...
   return LOGGER.traceExit(m, myResult);
}

Params: message – The Message containing the formatted result.
result – The result being returned from the method call.
Type parameters: <R> – The type of the parameter and object being returned.
Returns: the result.
Since: 2.6/**
     * Logs exiting from a method with the result. Allows custom formatting of the result. This may be coded as:
     *
     * <pre><code>
     * public long doSomething(int a, int b) {
     *    EntryMessage m = traceEntry("doSomething(a={}, b={})", a, b);
     *    // ...
     *    return LOGGER.traceExit(m, myResult);
     * }
     * </code></pre>
     * @param message The Message containing the formatted result.
     * @param result The result being returned from the method call.
     *
     * @param <R> The type of the parameter and object being returned.
     * @return the result.
     *
     * @since 2.6
     */
    <R> R traceExit(EntryMessage message, R result);

    Logs exiting from a method with the result. Allows custom formatting of the result. This may be coded as:

return LOGGER.traceExit(new JsonMessage(myResult), myResult);

Params: message – The Message containing the formatted result.
result – The result being returned from the method call.
Type parameters: <R> – The type of the parameter and object being returned.
Returns: the result.
Since: 2.6/**
     * Logs exiting from a method with the result. Allows custom formatting of the result. This may be coded as:
     *
     * <pre><code>
     * return LOGGER.traceExit(new JsonMessage(myResult), myResult);
     * </code></pre>
     * @param message The Message containing the formatted result.
     * @param result The result being returned from the method call.
     *
     * @param <R> The type of the parameter and object being returned.
     * @return the result.
     *
     * @since 2.6
     */
    <R> R traceExit(Message message, R result);

    Logs a message with the specific Marker at the WARN level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#WARN WARN} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     */
    void warn(Marker marker, Message msg);

    Logs a message with the specific Marker at the WARN level. 
Params: marker – the marker data specific to this log statement
msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#WARN WARN} level.
     *
     * @param marker the marker data specific to this log statement
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void warn(Marker marker, Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the WARN level with the specified Marker. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#WARN WARN} level with the
     * specified Marker. The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the
     * {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void warn(Marker marker, MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the WARN level) with the specified Marker and including the stack warn of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#WARN WARN} level) with the
     * specified Marker and including the stack warn of the {@link Throwable} <code>t</code> passed as parameter. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void warn(Marker marker, MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the WARN level. 
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#WARN WARN} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     */
    void warn(Marker marker, CharSequence message);

    Logs a CharSequence at the WARN level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#WARN WARN} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void warn(Marker marker, CharSequence message, Throwable t);

    Logs a message object with the WARN level. 
Params: marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the {@link Level#WARN WARN} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void warn(Marker marker, Object message);

    Logs a message at the WARN level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#WARN WARN} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void warn(Marker marker, Object message, Throwable t);

    Logs a message object with the WARN level. 
Params: marker – the marker data specific to this log statement
message – the message object to log./**
     * Logs a message object with the {@link Level#WARN WARN} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     */
    void warn(Marker marker, String message);

    Logs a message with parameters at the WARN level. 
Params: marker – the marker data specific to this log statement.
message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#WARN WARN} level.
     *
     * @param marker the marker data specific to this log statement.
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void warn(Marker marker, String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
WARN level. 
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#WARN
     * WARN} level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void warn(Marker marker, String message, Supplier<?>... paramSuppliers);

    Logs a message at the WARN level including the stack trace of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#WARN WARN} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void warn(Marker marker, String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the WARN level with the specified Marker. 
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#WARN WARN} level with the
     * specified Marker.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void warn(Marker marker, Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the WARN level) with the specified Marker and including the stack warn of the Throwable t passed as parameter.
Params: marker – the marker data specific to this log statement
msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – A Throwable or null.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#WARN WARN} level) with the
     * specified Marker and including the stack warn of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param marker the marker data specific to this log statement
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t A Throwable or null.
     * @since 2.4
     */
    void warn(Marker marker, Supplier<?> msgSupplier, Throwable t);

    Logs a message with the specific Marker at the WARN level. 
Params: msg – the message string to be logged/**
     * Logs a message with the specific Marker at the {@link Level#WARN WARN} level.
     *
     * @param msg the message string to be logged
     */
    void warn(Message msg);

    Logs a message with the specific Marker at the WARN level. 
Params: msg – the message string to be logged
t – A Throwable or null./**
     * Logs a message with the specific Marker at the {@link Level#WARN WARN} level.
     *
     * @param msg the message string to be logged
     * @param t A Throwable or null.
     */
    void warn(Message msg, Throwable t);

    Logs a message which is only to be constructed if the logging level is the WARN level. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#WARN WARN} level. The
     * {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @since 2.4
     */
    void warn(MessageSupplier msgSupplier);

    Logs a message (only to be constructed if the logging level is the WARN level) including the stack warn of the Throwable t passed as parameter. The MessageSupplier may or may not use the MessageFactory to construct the Message. 
Params: msgSupplier – A function, which when called, produces the desired log message.
t – the exception to log, including its stack warn.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#WARN WARN} level) including the
     * stack warn of the {@link Throwable} <code>t</code> passed as parameter. The {@code MessageSupplier} may or may
     * not use the {@link MessageFactory} to construct the {@code Message}.
     *
     * @param msgSupplier A function, which when called, produces the desired log message.
     * @param t the exception to log, including its stack warn.
     * @since 2.4
     */
    void warn(MessageSupplier msgSupplier, Throwable t);

    Logs a message CharSequence with the WARN level. 
Params: message – the message CharSequence to log./**
     * Logs a message CharSequence with the {@link Level#WARN WARN} level.
     *
     * @param message the message CharSequence to log.
     */
    void warn(CharSequence message);

    Logs a CharSequence at the WARN level including the stack trace of the Throwable t passed as parameter.
Params: message – the message CharSequence to log.
t – the exception to log, including its stack trace./**
     * Logs a CharSequence at the {@link Level#WARN WARN} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message CharSequence to log.
     * @param t the exception to log, including its stack trace.
     */
    void warn(CharSequence message, Throwable t);

    Logs a message object with the WARN level. 
Params: message – the message object to log./**
     * Logs a message object with the {@link Level#WARN WARN} level.
     *
     * @param message the message object to log.
     */
    void warn(Object message);

    Logs a message at the WARN level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#WARN WARN} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void warn(Object message, Throwable t);

    Logs a message object with the WARN level. 
Params: message – the message string to log./**
     * Logs a message object with the {@link Level#WARN WARN} level.
     *
     * @param message the message string to log.
     */
    void warn(String message);

    Logs a message with parameters at the WARN level. 
Params: message – the message to log; the format depends on the message factory.
params – parameters to the message.
See Also: getMessageFactory()/**
     * Logs a message with parameters at the {@link Level#WARN WARN} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param params parameters to the message.
     * @see #getMessageFactory()
     */
    void warn(String message, Object... params);

    Logs a message with parameters which are only to be constructed if the logging level is the 
WARN level. 
Params: message – the message to log; the format depends on the message factory.
paramSuppliers – An array of functions, which when called, produce the desired log message parameters.
Since: 2.4/**
     * Logs a message with parameters which are only to be constructed if the logging level is the {@link Level#WARN
     * WARN} level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param paramSuppliers An array of functions, which when called, produce the desired log message parameters.
     * @since 2.4
     */
    void warn(String message, Supplier<?>... paramSuppliers);

    Logs a message at the WARN level including the stack trace of the Throwable t passed as parameter.
Params: message – the message object to log.
t – the exception to log, including its stack trace./**
     * Logs a message at the {@link Level#WARN WARN} level including the stack trace of the {@link Throwable}
     * <code>t</code> passed as parameter.
     *
     * @param message the message object to log.
     * @param t the exception to log, including its stack trace.
     */
    void warn(String message, Throwable t);

    Logs a message which is only to be constructed if the logging level is the WARN level. 
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
Since: 2.4/**
     * Logs a message which is only to be constructed if the logging level is the {@link Level#WARN WARN} level.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @since 2.4
     */
    void warn(Supplier<?> msgSupplier);

    Logs a message (only to be constructed if the logging level is the WARN level) including the stack warn of the Throwable t passed as parameter.
Params: msgSupplier – A function, which when called, produces the desired log message; the format depends on the
           message factory.
t – the exception to log, including its stack warn.
Since: 2.4/**
     * Logs a message (only to be constructed if the logging level is the {@link Level#WARN WARN} level) including the
     * stack warn of the {@link Throwable} <code>t</code> passed as parameter.
     *
     * @param msgSupplier A function, which when called, produces the desired log message; the format depends on the
     *            message factory.
     * @param t the exception to log, including its stack warn.
     * @since 2.4
     */
    void warn(Supplier<?> msgSupplier, Throwable t);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5,
            Object p6);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8);

    Logs a message with parameters at warn level.
Params: marker – the marker data specific to this log statement
message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param marker the marker data specific to this log statement
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void warn(Marker marker, String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6,
            Object p7, Object p8, Object p9);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     */
    void warn(String message, Object p0);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     */
    void warn(String message, Object p0, Object p1);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2, Object p3);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2, Object p3, Object p4);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8);

    Logs a message with parameters at warn level.
Params: message – the message to log; the format depends on the message factory.
p0 – parameter to the message.
p1 – parameter to the message.
p2 – parameter to the message.
p3 – parameter to the message.
p4 – parameter to the message.
p5 – parameter to the message.
p6 – parameter to the message.
p7 – parameter to the message.
p8 – parameter to the message.
p9 – parameter to the message./**
     * Logs a message with parameters at warn level.
     *
     * @param message the message to log; the format depends on the message factory.
     * @param p0 parameter to the message.
     * @param p1 parameter to the message.
     * @param p2 parameter to the message.
     * @param p3 parameter to the message.
     * @param p4 parameter to the message.
     * @param p5 parameter to the message.
     * @param p6 parameter to the message.
     * @param p7 parameter to the message.
     * @param p8 parameter to the message.
     * @param p9 parameter to the message.
     */
    void warn(String message, Object p0, Object p1, Object p2, Object p3, Object p4, Object p5, Object p6, Object p7,
            Object p8, Object p9);


    Logs a Message.
Params: level – The logging Level to check.
marker – A Marker or null.
fqcn – The fully qualified class name of the logger entry point, used to determine the caller class and
           method when location information needs to be logged.
location – The location of the caller.
message – The message format.
throwable – the exception to log, including its stack trace.
Since: 2.13.0/**
     * Logs a Message.
     * @param level The logging Level to check.
     * @param marker A Marker or null.
     * @param fqcn The fully qualified class name of the logger entry point, used to determine the caller class and
     *            method when location information needs to be logged.
     * @param location The location of the caller.
     * @param message The message format.
     * @param throwable the exception to log, including its stack trace.
     * @since 2.13.0
     */
    default void logMessage(Level level, Marker marker, String fqcn, StackTraceElement location, Message message,
        Throwable throwable) {

    }

    Construct a trace log event.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a trace log event.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder atTrace() {
        return LogBuilder.NOOP;
    }
    Construct a trace log event.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a trace log event.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder atDebug() {
        return LogBuilder.NOOP;
    }
    Construct a trace log event.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a trace log event.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder atInfo() {
        return LogBuilder.NOOP;
    }
    Construct a trace log event.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a trace log event.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder atWarn() {
        return LogBuilder.NOOP;
    }
    Construct a trace log event.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a trace log event.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder atError() {
        return LogBuilder.NOOP;
    }
    Construct a trace log event.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a trace log event.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder atFatal() {
        return LogBuilder.NOOP;
    }
    Construct a log event that will always be logged.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a log event that will always be logged.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder always() {
        return LogBuilder.NOOP;
    }
    Construct a log event.
Returns: a LogBuilder.
Since: 2.13.0/**
     * Construct a log event.
     * @return a LogBuilder.
     * @since 2.13.0
     */
    default LogBuilder atLevel(Level level) {
        return LogBuilder.NOOP;
    }
}
Params:	marker – the marker data specific to this log statement msgSupplier – A function, which when called, produces the desired log message.
Since:	2.4
Params:	marker – the marker data specific to this log statement message – the message to log; the format depends on the message factory. params – parameters to the message.
See Also:	getMessageFactory()
Params:	msgSupplier – A function, which when called, produces the desired log message.
Since:	2.4
Params:	message – the message to log; the format depends on the message factory. params – parameters to the message.
See Also:	getMessageFactory()
Params:	params – The parameters to the method.
Deprecated:	Use `traceEntry(String, Object...)` instead which performs the same function.
Params:	result – The result being returned from the method call.
Type parameters:	<R> – The type of the parameter and object being returned.
Returns:	the result.
Deprecated:	Use `traceExit(Object)` instead which performs the same function.
Params:	marker – The Marker to check
Returns:	boolean - `true` if this Logger is enabled for level DEBUG, `false` otherwise.
Params:	level – the Level to check
Returns:	boolean - `true` if this Logger is enabled for level, `false` otherwise.
Params:	level – The Level to check marker – The Marker to check
Returns:	boolean - `true` if this Logger is enabled for level and marker, `false` otherwise.
Params:	level – the logging level marker – the marker data specific to this log statement msgSupplier – A function, which when called, produces the desired log message.
Since:	2.4
Params:	level – the logging level msgSupplier – A function, which when called, produces the desired log message.
Since:	2.4
Params:	level – the logging level message – the message to log; the format depends on the message factory. params – parameters to the message.
See Also:	getMessageFactory()
Params:	level – The logging Level. t – The Throwable.
Type parameters:	<T> – the Throwable type.
Returns:	the Throwable.
Params:	t – The Throwable.
Type parameters:	<T> – the Throwable type.
Returns:	the Throwable.
Params:	message – the message CharSequence to log. t – the exception to log, including its stack trace.
See Also:	debug(String)
Params:	message – the message object to log. t – the exception to log, including its stack trace.
See Also:	debug(String)
Params:	format – The format String for the parameters. params – The parameters to the method.
Returns:	The built Message
Since:	2.6
Params:	paramSuppliers – The Suppliers for the parameters to the method.
Returns:	built message
Since:	2.6
Params:	message – The message. Avoid specifying a ReusableMessage, use immutable messages instead.
See Also:	ReusableMessage
Returns:	the built message
Since:	2.6
Params:	format – The format String for the result. result – The result being returned from the method call.
Type parameters:	<R> – The type of the parameter and object being returned.
Returns:	the result.
Since:	2.6
/

org.apache.logging.log4j/ log4j-api/ 2.14.0/ org/apache/logging/log4j/Logger.java
