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 class io.netty.channel.ConnectTimeoutException extends java.net.ConnectException
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.netty.channel.ConnectTimeoutException
  super_class: java.net.ConnectException
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 2317065249988317463

  public void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // io.netty.channel.ConnectTimeoutException this
        start local 1 // java.lang.String msg
         0: .line 28
            aload 0 /* this */
            aload 1 /* msg */
            invokespecial java.net.ConnectException.<init>:(Ljava/lang/String;)V
         1: .line 29
            return
        end local 1 // java.lang.String msg
        end local 0 // io.netty.channel.ConnectTimeoutException this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/channel/ConnectTimeoutException;
            0    2     1   msg  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      msg   

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.channel.ConnectTimeoutException this
         0: .line 31
            aload 0 /* this */
            invokespecial java.net.ConnectException.<init>:()V
         1: .line 32
            return
        end local 0 // io.netty.channel.ConnectTimeoutException this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/channel/ConnectTimeoutException;
}
SourceFile: "ConnectTimeoutException.java"