Thanks, Christian for your response!

Yes, I want to do plain RPC. Here is the stacktrace:

org.jboss.errai.bus.client.api.base.MessageDeliveryFailure: error invoking endpoint

  at org.jboss.errai.bus.server.io.ConversationalEndpointCallback.callback(ConversationalEndpointCallback.java:135)

  at org.jboss.errai.bus.server.io.RemoteServiceCallback.callback(RemoteServiceCallback.java:54)

  at org.jboss.errai.bus.client.framework.DeliveryPlan.deliver(DeliveryPlan.java:43)

  at org.jboss.errai.bus.server.ServerMessageBusImpl.sendGlobal(ServerMessageBusImpl.java:632)

  at org.jboss.errai.bus.server.SimpleDispatcher.dispatchGlobal(SimpleDispatcher.java:46)

  at org.jboss.errai.bus.server.service.ErraiServiceImpl.store(ErraiServiceImpl.java:93)

  at org.jboss.errai.bus.server.service.ErraiServiceImpl.store(ErraiServiceImpl.java:107)

  at org.jboss.errai.bus.server.servlet.DefaultBlockingServlet.doPost(DefaultBlockingServlet.java:117)

  at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

  at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

  at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)

  at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)

  at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)

  at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

  at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)

  at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)

  at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

  at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)

  at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

  at org.mortbay.jetty.Server.handle(Server.java:324)

  at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)

  at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843)

  at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)

  at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)

  at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)

  at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)

  at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

Caused by: org.jboss.errai.marshalling.client.api.exceptions.MarshallingException: class is not available to the marshaller framework: org.company.firestorm.client.shared.model.UserModel

  at org.jboss.errai.marshalling.server.MappingContextSingleton$4.getMarshaller(MappingContextSingleton.java:292)

  at org.jboss.errai.marshalling.client.api.AbstractMarshallingSession.getMarshallerInstance(AbstractMarshallingSession.java:67)

  at org.jboss.errai.marshalling.client.util.MarshallUtil.getMarshaller(MarshallUtil.java:125)

  at org.jboss.errai.marshalling.client.marshallers.ErraiProtocolEnvelopeMarshaller.marshall(ErraiProtocolEnvelopeMarshaller.java:97)

  at org.jboss.errai.marshalling.client.protocols.ErraiProtocol.encodePayload(ErraiProtocol.java:40)

  at org.jboss.errai.marshalling.server.protocol.ErraiProtocolServer.encodePayloadToByteArrayInputStream(ErraiProtocolServer.java:31)

  at org.jboss.errai.bus.server.io.BufferHelper.encodeAndWrite(BufferHelper.java:88)

  at org.jboss.errai.bus.server.MessageQueueImpl.offer(MessageQueueImpl.java:186)

  at org.jboss.errai.bus.server.ServerMessageBusImpl.enqueueForDelivery(ServerMessageBusImpl.java:739)

  at org.jboss.errai.bus.server.ServerMessageBusImpl.send(ServerMessageBusImpl.java:728)

  at org.jboss.errai.bus.server.ServerMessageBusImpl.send(ServerMessageBusImpl.java:675)

  at org.jboss.errai.bus.client.api.base.ConversationMessageWrapper.sendNowWith(ConversationMessageWrapper.java:228)

  at org.jboss.errai.bus.client.api.base.DefaultMessageBuilder$1.sendNowWith(DefaultMessageBuilder.java:78)

  at org.jboss.errai.bus.server.io.ConversationalEndpointCallback.callback(ConversationalEndpointCallback.java:122)

  ... 26 more

*** Message delivery failure ***

Bus: org.jboss.errai.bus.server.ServerMessageBusImpl@d35fc47

Message: CommandType=loadUserModelByEmail:java.lang.String:, ErrorTo=org.company.firestorm.client.local.delegate.UserAccountService:RPC.loadUserModelByEmail:java.lang.String::Errors:2, ReplyTo=org.company.firestorm.client.local.delegate.UserAccountService:RPC.loadUserModelByEmail:java.lang.String::RespondTo:2, ToSubject=org.company.firestorm.client.local.delegate.UserAccountService:RPC, MethodParms=[lynn2002@gmail.com]

errorMessage: Error calling remote service: org.company.firestorm.client.local.delegate.UserAccountService:RPC

exception: org.jboss.errai.bus.client.api.base.MessageDeliveryFailure: error invoking endpoint

disconnect: false

.... and FYI...

<properties>

  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

  <maven.compiler.source>1.6</maven.compiler.source>

  <maven.compiler.target>1.6</maven.compiler.target>

  <errai.version>2.3.0.Final</errai.version>

  <gwt.version>2.4.0</gwt.version>

  <weld.version>1.1.6.Final</weld.version>

  <gwt.maven.version>2.4.0</gwt.maven.version>

  <mvel.version>2.1.Beta8</mvel.version>

  <jetty.version>6.1.25</jetty.version>

  <slf4j.version>1.6.1</slf4j.version>

  <uel.impl.version>2.1.2-b04</uel.impl.version>

</properties>

Thanks a lot Christian!

Yes, you are right, I am actually doing Errai RPC.

I have concern marking my objects as "Portable", cause my object graph has circular scenario. Does Errai marshall framework handle it ?

Thanks again!

Tao

Thanks a lot, Christian!