Problems porting Kryonet library from jar to GWT format

[BigBoss]

I'm trying to port the Kryonet to the GWT format. I'm building the GWT.XML but when I launch my GWT app, I have 2 error reported (I don't know where).I put the code here. Can you help me to port this wonderful library to the GWT compiler?kryonet.gwt.xml\[code\]<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit trunk//EN" "http://google-web-toolkit.googlecode.com/svn/trunk/distro-source/core/src/gwt-module.dtd"><module rename-to="com.esotericsoftware.kryonet"> <source path="kryonet"> <include name="Client.java"/> <include name="Connection.java"/> <include name="EndPoint.java"/> <include name="FrameworkMessage.java"/> <include name="JsonSerialization.java"/> <include name="KryoNetException.java"/> <include name="KryoSerialization.java"/> <include name="Listener.java"/> <include name="Serialization.java"/> <include name="Server.java"/> <include name="TcpConnection.java"/> <include name="UdpConnection.java"/> <include name="rmi/ObjectSpace.java"/> <include name="rmi/RemoteObject.java"/> <include name="rmi/TimeoutException.java"/> <include name="util/InputStreamSender.java"/> <include name="util/TcpIdleSender.java"/> </source> </module>\[/code\]