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.channel.nio.AbstractNioChannel$NioUnsafe extends io.netty.channel.Channel$Unsafe
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: io.netty.channel.nio.AbstractNioChannel$NioUnsafe
  super_class: java.lang.Object
{
  public abstract java.nio.channels.SelectableChannel ch();
    descriptor: ()Ljava/nio/channels/SelectableChannel;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract void finishConnect();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract void read();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract void forceFlush();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "AbstractNioChannel.java"
NestHost: io.netty.channel.nio.AbstractNioChannel
InnerClasses:
  public abstract Unsafe = io.netty.channel.Channel$Unsafe of io.netty.channel.Channel
  public abstract NioUnsafe = io.netty.channel.nio.AbstractNioChannel$NioUnsafe of io.netty.channel.nio.AbstractNioChannel