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.handler.codec.socksx.v4.Socks4CommandRequest extends io.netty.handler.codec.socksx.v4.Socks4Message
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: io.netty.handler.codec.socksx.v4.Socks4CommandRequest
  super_class: java.lang.Object
{
  public abstract io.netty.handler.codec.socksx.v4.Socks4CommandType type();
    descriptor: ()Lio/netty/handler/codec/socksx/v4/Socks4CommandType;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.String userId();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.String dstAddr();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int dstPort();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "Socks4CommandRequest.java"