https://bytebuddy.net/byte-buddy-dep: Byte Buddy is a Java library for creating Java classes at run time. This artifact is a build of Byte Buddy with a remaining dependency onto ASM. You should never depend on this module without repackaging Byte Buddy and ASM into your own namespace. 
/*
 * Copyright 2014 - 2020 Rafael Winterhalter
 *
 * Licensed 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 net.bytebuddy.implementation.attribute;


An annotation retention strategy decides if annotations that are contained within a class file are preserved upon redefining or rebasing a method. When annotations are retained, it is important not to define annotations explicitly that are already defined. When annotations are retained, they are retained in their original format, i.e. default values that were not included in the class file are not added or skipped as determined by a AnnotationValueFilter. 
/**
 * An annotation retention strategy decides if annotations that are contained within a class file are preserved upon redefining
 * or rebasing a method. When annotations are retained, it is important not to define annotations explicitly that are already
 * defined. When annotations are retained, they are retained in their original format, i.e. default values that were not included
 * in the class file are not added or skipped as determined by a {@link AnnotationValueFilter}.
 */
public enum AnnotationRetention {

    
Enables annotation retention, i.e. annotations within an existing class files are preserved as they are.

/**
     * Enables annotation retention, i.e. annotations within an existing class files are preserved as they are.
     */
    ENABLED(true),

    
Disables annotation retention, i.e. annotations within an existing class files are discarded.

/**
     * Disables annotation retention, i.e. annotations within an existing class files are discarded.
     */
    DISABLED(false);

    
true if annotation retention is enabled. 
/**
     * {@code true} if annotation retention is enabled.
     */
    private final boolean enabled;

    
Creates an annotation retention strategy.

Params:
  • enabled – true if annotation retention is enabled.
/**
     * Creates an annotation retention strategy.
     *
     * @param enabled {@code true} if annotation retention is enabled.
     */
    AnnotationRetention(boolean enabled) {
        this.enabled = enabled;
    }

    
Resolves an annotation retention from a boolean value.

Params:
  • enabled – true if annotation retention is enabled.
Returns:An enabled annotation retention if the value is true.
/**
     * Resolves an annotation retention from a boolean value.
     *
     * @param enabled {@code true} if annotation retention is enabled.
     * @return An enabled annotation retention if the value is {@code true}.
     */
    public static AnnotationRetention of(boolean enabled) {
        return enabled
                ? ENABLED
                : DISABLED;
    }

    
Returns true if annotation retention is enabled. 
Returns:true if annotation retention is enabled.
/**
     * Returns {@code true} if annotation retention is enabled.
     *
     * @return {@code true} if annotation retention is enabled.
     */
    public boolean isEnabled() {
        return enabled;
    }
}