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) 
interface io.netty.handler.codec.http2.DefaultHttp2Connection$Event
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: io.netty.handler.codec.http2.DefaultHttp2Connection$Event
  super_class: java.lang.Object
{
  public abstract void process();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "DefaultHttp2Connection.java"
NestHost: io.netty.handler.codec.http2.DefaultHttp2Connection
InnerClasses:
  abstract Event = io.netty.handler.codec.http2.DefaultHttp2Connection$Event of io.netty.handler.codec.http2.DefaultHttp2Connection