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) 
final class io.netty.util.Signal$SignalConstant extends io.netty.util.AbstractConstant<io.netty.util.Signal$SignalConstant>
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: io.netty.util.Signal$SignalConstant
  super_class: io.netty.util.AbstractConstant
{
  void <init>(int, java.lang.String);
    descriptor: (ILjava/lang/String;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // io.netty.util.Signal$SignalConstant this
        start local 1 // int id
        start local 2 // java.lang.String name
         0: .line 113
            aload 0 /* this */
            iload 1 /* id */
            aload 2 /* name */
            invokespecial io.netty.util.AbstractConstant.<init>:(ILjava/lang/String;)V
         1: .line 114
            return
        end local 2 // java.lang.String name
        end local 1 // int id
        end local 0 // io.netty.util.Signal$SignalConstant this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/util/Signal$SignalConstant;
            0    2     1    id  I
            0    2     2  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      id    
      name  
}
Signature: Lio/netty/util/AbstractConstant<Lio/netty/util/Signal$SignalConstant;>;
SourceFile: "Signal.java"
NestHost: io.netty.util.Signal
InnerClasses:
  private final SignalConstant = io.netty.util.Signal$SignalConstant of io.netty.util.Signal