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) 
class io.netty.channel.oio.OioByteStreamChannel$2 extends java.io.OutputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: io.netty.channel.oio.OioByteStreamChannel$2
  super_class: java.io.OutputStream
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.channel.oio.OioByteStreamChannel$2 this
         0: .line 44
            aload 0 /* this */
            invokespecial java.io.OutputStream.<init>:()V
            return
        end local 0 // io.netty.channel.oio.OioByteStreamChannel$2 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/channel/oio/OioByteStreamChannel$2;

  public void write(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // io.netty.channel.oio.OioByteStreamChannel$2 this
        start local 1 // int b
         0: .line 47
            new java.nio.channels.ClosedChannelException
            dup
            invokespecial java.nio.channels.ClosedChannelException.<init>:()V
            athrow
        end local 1 // int b
        end local 0 // io.netty.channel.oio.OioByteStreamChannel$2 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/channel/oio/OioByteStreamChannel$2;
            0    1     1     b  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      b     
}
SourceFile: "OioByteStreamChannel.java"
EnclosingMethod: io.netty.channel.oio.OioByteStreamChannel
NestHost: io.netty.channel.oio.OioByteStreamChannel
InnerClasses:
  io.netty.channel.oio.OioByteStreamChannel$2