http://netty.io/netty-all/: Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. (The Netty Project) 
public interface io.netty.util.Constant<T extends io.netty.util.Constant<T>> extends java.lang.Comparable<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: io.netty.util.Constant
  super_class: java.lang.Object
{
  public abstract int id();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.String name();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
Signature: <T::Lio/netty/util/Constant<TT;>;>Ljava/lang/Object;Ljava/lang/Comparable<TT;>;
SourceFile: "Constant.java"