http://www.jcraft.com/jsch/: JSch is a pure Java implementation of SSH2 (JCraft,Inc.) 
abstract class com.jcraft.jsch.ChannelForwardedTCPIP$Config
  minor version: 0
  major version: 59
  flags: flags: (0x0420) ACC_SUPER, ACC_ABSTRACT
  this_class: com.jcraft.jsch.ChannelForwardedTCPIP$Config
  super_class: java.lang.Object
{
  com.jcraft.jsch.Session session;
    descriptor: Lcom/jcraft/jsch/Session;
    flags: (0x0000) 

  int rport;
    descriptor: I
    flags: (0x0000) 

  int allocated_rport;
    descriptor: I
    flags: (0x0000) 

  java.lang.String address_to_bind;
    descriptor: Ljava/lang/String;
    flags: (0x0000) 

  java.lang.String target;
    descriptor: Ljava/lang/String;
    flags: (0x0000) 

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.jcraft.jsch.ChannelForwardedTCPIP$Config this
         0: .line 315
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.jcraft.jsch.ChannelForwardedTCPIP$Config this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/jcraft/jsch/ChannelForwardedTCPIP$Config;
}
SourceFile: "ChannelForwardedTCPIP.java"
NestHost: com.jcraft.jsch.ChannelForwardedTCPIP
InnerClasses:
  abstract Config = com.jcraft.jsch.ChannelForwardedTCPIP$Config of com.jcraft.jsch.ChannelForwardedTCPIP