https://logging.apache.org/log4j/2.x/log4j-core/: The Apache Log4j Implementation (The Apache Software Foundation)
  • Ralph Goers (Nextiva)
  • Gary Gregory (Rocket Software)
  • Scott Deboy
  • Remko Popma
  • Nick Williams
  • Matt Sicker (Independent Consultant)
  • Bruce Brouwer
  • Mikael Ståldal (Spotify) 
public class org.apache.logging.log4j.core.config.DefaultConfiguration extends org.apache.logging.log4j.core.config.AbstractConfiguration
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.logging.log4j.core.config.DefaultConfiguration
  super_class: org.apache.logging.log4j.core.config.AbstractConfiguration
{
  public static final java.lang.String DEFAULT_NAME;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: "Default"

  public static final java.lang.String DEFAULT_LEVEL;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: "org.apache.logging.log4j.level"

  public static final java.lang.String DEFAULT_PATTERN;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: "%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n"

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.logging.log4j.core.config.DefaultConfiguration this
         0: .line 46
            aload 0 /* this */
            aconst_null
            getstatic org.apache.logging.log4j.core.config.ConfigurationSource.NULL_SOURCE:Lorg/apache/logging/log4j/core/config/ConfigurationSource;
            invokespecial org.apache.logging.log4j.core.config.AbstractConfiguration.<init>:(Lorg/apache/logging/log4j/core/LoggerContext;Lorg/apache/logging/log4j/core/config/ConfigurationSource;)V
         1: .line 47
            aload 0 /* this */
            invokevirtual org.apache.logging.log4j.core.config.DefaultConfiguration.setToDefault:()V
         2: .line 48
            return
        end local 0 // org.apache.logging.log4j.core.config.DefaultConfiguration this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/logging/log4j/core/config/DefaultConfiguration;

  protected void doConfigure();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=0, locals=1, args_size=1
        start local 0 // org.apache.logging.log4j.core.config.DefaultConfiguration this
         0: .line 52
            return
        end local 0 // org.apache.logging.log4j.core.config.DefaultConfiguration this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/logging/log4j/core/config/DefaultConfiguration;
}
SourceFile: "DefaultConfiguration.java"