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 (CloudBees)
  • Bruce Brouwer
  • Mikael Ståldal (Spotify)
  • Carter Kozak 
abstract class org.apache.logging.log4j.core.appender.routing.RoutingAppender$RouteAppenderControl extends org.apache.logging.log4j.core.config.AppenderControl
  minor version: 0
  major version: 59
  flags: flags: (0x0420) ACC_SUPER, ACC_ABSTRACT
  this_class: org.apache.logging.log4j.core.appender.routing.RoutingAppender$RouteAppenderControl
  super_class: org.apache.logging.log4j.core.config.AppenderControl
{
  void <init>(org.apache.logging.log4j.core.Appender);
    descriptor: (Lorg/apache/logging/log4j/core/Appender;)V
    flags: (0x0000) 
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.logging.log4j.core.appender.routing.RoutingAppender$RouteAppenderControl this
        start local 1 // org.apache.logging.log4j.core.Appender appender
         0: .line 427
            aload 0 /* this */
            aload 1 /* appender */
            aconst_null
            aconst_null
            invokespecial org.apache.logging.log4j.core.config.AppenderControl.<init>:(Lorg/apache/logging/log4j/core/Appender;Lorg/apache/logging/log4j/Level;Lorg/apache/logging/log4j/core/Filter;)V
         1: .line 428
            return
        end local 1 // org.apache.logging.log4j.core.Appender appender
        end local 0 // org.apache.logging.log4j.core.appender.routing.RoutingAppender$RouteAppenderControl this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    2     0      this  Lorg/apache/logging/log4j/core/appender/routing/RoutingAppender$RouteAppenderControl;
            0    2     1  appender  Lorg/apache/logging/log4j/core/Appender;
    MethodParameters:
          Name  Flags
      appender  

  abstract void checkout();
    descriptor: ()V
    flags: (0x0400) ACC_ABSTRACT

  abstract void release();
    descriptor: ()V
    flags: (0x0400) ACC_ABSTRACT
}
SourceFile: "RoutingAppender.java"
NestHost: org.apache.logging.log4j.core.appender.routing.RoutingAppender
InnerClasses:
  private abstract RouteAppenderControl = org.apache.logging.log4j.core.appender.routing.RoutingAppender$RouteAppenderControl of org.apache.logging.log4j.core.appender.routing.RoutingAppender