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 
public class org.apache.logging.log4j.core.impl.Log4jProvider extends org.apache.logging.log4j.spi.Provider
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.logging.log4j.core.impl.Log4jProvider
  super_class: org.apache.logging.log4j.spi.Provider
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.apache.logging.log4j.core.impl.Log4jProvider this
         0: .line 26
            aload 0 /* this */
            bipush 10
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            ldc "2.6.0"
            ldc Lorg/apache/logging/log4j/core/impl/Log4jContextFactory;
            invokespecial org.apache.logging.log4j.spi.Provider.<init>:(Ljava/lang/Integer;Ljava/lang/String;Ljava/lang/Class;)V
         1: .line 27
            return
        end local 0 // org.apache.logging.log4j.core.impl.Log4jProvider this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/logging/log4j/core/impl/Log4jProvider;
}
SourceFile: "Log4jProvider.java"