Loc Tran [https://community.jboss.org/people/loctran] created the discussion "Re: ClassLoader issue when using JBoss remoting in AS 7.1.1" To view the discussion, visit: https://community.jboss.org/message/783667#783667 -------------------------------------------------------------- Hi Garcia, I got the same problem! Here is messge from server: 11:38:23,040 ERROR [org.jboss.as.ejb3.remote.protocol.versionone.VersionOneProtocolChannelReceiver] (Remoting "tranloc" task-4) Exception on channel Channel ID 3c153634 (inbound) of Remoting connection 66673ecf to /127.0.0.1:59357 from message org.jboss.remoting3.remote.InboundMessage$3@1d3ca9d7: java.io.InvalidClassException: test.manager.model.User; Class does not extend stream superclass           at org.jboss.marshalling.river.RiverUnmarshaller.doReadClassDescriptor(RiverUnmarshaller.java:909)           at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1204)           at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)           at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)           at org.jboss.marshalling.AbstractObjectInput.readObject(AbstractObjectInput.java:37) [jboss-marshalling-1.3.11.GA.jar:1.3.11.GA]           at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.processMessage(MethodInvocationMessageHandler.java:156)           at org.jboss.as.ejb3.remote.protocol.versionone.VersionOneProtocolChannelReceiver.handleMessage(VersionOneProtocolChannelReceiver.java:170)           at org.jboss.remoting3.remote.RemoteConnectionChannel$5.run(RemoteConnectionChannel.java:437) [jboss-remoting-3.2.3.GA.jar:3.2.3.GA]           at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_33]           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_33]           at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_33] And this is the message from test client: Dec 17, 2012 12:02:34 PM org.xnio.Xnio <clinit> INFO: XNIO Version 3.0.3.GA Dec 17, 2012 12:02:35 PM org.xnio.nio.NioXnio <clinit> INFO: XNIO NIO Implementation Version 3.0.3.GA Dec 17, 2012 12:02:35 PM org.jboss.remoting3.EndpointImpl <clinit> INFO: JBoss Remoting version 3.2.3.GA Dec 17, 2012 12:02:35 PM org.jboss.ejb.client.remoting.VersionReceiver handleMessage INFO: Received server version 1 and marshalling strategies [river] Dec 17, 2012 12:02:35 PM org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver associate INFO: Successful version handshake completed for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@5e3ca754, receiver=Remoting connection EJB receiver [connection=Remoting connection <265a2eaa>,channel=jboss.ejb,nodename=tranloc]} on channel Channel ID c17b78c1 (outbound) of Remoting connection 56f449b8 to localhost/127.0.0.1:4447 Dec 17, 2012 12:02:35 PM org.jboss.ejb.client.remoting.ChannelAssociation$ResponseReceiver handleMessage WARN: Unsupported message received with header 0xffffffff Dec 17, 2012 12:02:41 PM org.jboss.ejb.client.remoting.ChannelAssociation$ResponseReceiver handleEnd INFO: Channel Channel ID c17b78c1 (outbound) of Remoting connection 56f449b8 to localhost/127.0.0.1:4447 can no longer process messages java.lang.reflect.UndeclaredThrowableException           at $Proxy4.createUser(Unknown Source)           at test.TestCreateUser.test(TestCreateUser.java:76)           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)           at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)           at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)           at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)           at org.junit.runner.JUnitCore.run(JUnitCore.java:157)           at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63) Caused by: java.io.IOException: Channel Channel ID c17b78c1 (outbound) of Remoting connection 56f449b8 to localhost/127.0.0.1:4447 has been closed           at org.jboss.ejb.client.remoting.ChannelAssociation$1.handleClose(ChannelAssociation.java:110)           at org.jboss.ejb.client.remoting.ChannelAssociation$1.handleClose(ChannelAssociation.java:102)           at org.jboss.remoting3.spi.SpiUtils.safeHandleClose(SpiUtils.java:54)           at org.jboss.remoting3.spi.AbstractHandleableCloseable$CloseHandlerTask.run(AbstractHandleableCloseable.java:501)           at org.jboss.remoting3.spi.AbstractHandleableCloseable.runCloseTask(AbstractHandleableCloseable.java:406)           at org.jboss.remoting3.spi.AbstractHandleableCloseable.closeComplete(AbstractHandleableCloseable.java:277)           at org.jboss.remoting3.remote.RemoteConnectionChannel.closeAction(RemoteConnectionChannel.java:517)           at org.jboss.remoting3.spi.AbstractHandleableCloseable.close(AbstractHandleableCloseable.java:153)           at org.jboss.ejb.client.remoting.ChannelAssociation$ResponseReceiver.handleEnd(ChannelAssociation.java:373)           at org.jboss.remoting3.remote.RemoteConnectionChannel$2.run(RemoteConnectionChannel.java:276)           at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)           at java.lang.Thread.run(Thread.java:662) Disconnected from the target VM, address: '127.0.0.1:60275', transport: 'socket' Please update  if you already found out how to resolve -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/783667#783667] Start a new discussion in JBoss Remoting at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]