cannot run Errai synchronization example

[jhollerer]

I downloaded the Errai 1.0 distribution and wanted to start the examples - the clientservice worked - but when

i try to run the serialization example i get an error in the browser window (mozilla 3.6) - see below and a failure at startup (when trying to run in eclipse) - any suggestion where i can find the ErraiServletConfig ?:

Starting Jetty on port 8888

   [WARN] Could not instantiate listener org.jboss.errai.bus.server.ErraiServletConfig

java.lang.ClassNotFoundException: org.jboss.errai.bus.server.ErraiServletConfig

com.google.gwt.json.client.JSONException: Unexpected typeof result 'xml'; please report this bug to the GWT team
  com.google.gwt.json.client.JSONParser.throwUnknownTypeException(JSONParser.java:58)
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  java.lang.reflect.Method.invoke(Method.java:597)
  com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
  com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
  com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
  com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1713)
  com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
  com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
  com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
  com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
  com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
  com.google.gwt.json.client.JSONParser.evaluate(JSONParser.java)
  com.google.gwt.json.client.JSONParser.parse(JSONParser.java:51)
  org.jboss.errai.bus.client.json.JSONUtilCli.decodePayload(JSONUtilCli.java:40)
  org.jboss.errai.bus.client.framework.ClientMessageBusImpl.procIncomingPayload(ClientMessageBusImpl.java:928)
  org.jboss.errai.bus.client.framework.ClientMessageBusImpl.access$10(ClientMessageBusImpl.java:926)
  org.jboss.errai.bus.client.framework.ClientMessageBusImpl$12.onResponseReceived(ClientMessageBusImpl.java:665)
  com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287)
  com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:396)
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  java.lang.reflect.Method.invoke(Method.java:597)
  com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
  com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
  com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
  com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1713)
  com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
  com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
  com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
  com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
  com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
  com.google.gwt.core.client.impl.Impl.apply(Impl.java)
  com.google.gwt.core.client.impl.Impl.entry0(Impl.java:188)
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  java.lang.reflect.Method.invoke(Method.java:597)
  com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
  com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
  com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
  com.google.gwt.dev.shell.BrowserChannel.reactToMessages(BrowserChannel.java:1668)
  com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:401)
  com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
  java.lang.Thread.run(Thread.java:619)

Additional  Details:

Error attaching to bus
Additional  details:
null
Message Contents:

HTTP ERROR: 404

NOT_FOUND

RequestURI=/Serialization/in.erraiBus

Powered by Jetty://

java.lang.NullPointerException: null
  org.jboss.errai.bus.client.framework.ClientMessageBusImpl.procIncomingPayload(ClientMessageBusImpl.java:934)
  org.jboss.errai.bus.client.framework.ClientMessageBusImpl.access$10(ClientMessageBusImpl.java:926)
  org.jboss.errai.bus.client.framework.ClientMessageBusImpl$12.onResponseReceived(ClientMessageBusImpl.java:665)
  com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287)
  com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:396)
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  java.lang.reflect.Method.invoke(Method.java:597)
  com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
  com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
  com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
  com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1713)
  com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
  com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
  com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
  com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
  com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
  com.google.gwt.core.client.impl.Impl.apply(Impl.java)
  com.google.gwt.core.client.impl.Impl.entry0(Impl.java:188)
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  java.lang.reflect.Method.invoke(Method.java:597)
  com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
  com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
  com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
  com.google.gwt.dev.shell.BrowserChannel.reactToMessages(BrowserChannel.java:1668)
  com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:401)
  com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
  java.lang.Thread.run(Thread.java:619)

Additional  Details:

[heiko.braun]

Does this happen when running the hosted mode?

How do you launch it?

Starting Jetty on port 8888

   [WARN] Could not instantiate listener org.jboss.errai.bus.server.ErraiServletConfig

java.lang.ClassNotFoundException: org.jboss.errai.bus.server.ErraiServletConfig

Looks like a classpath problem.

[jhollerer]

I directly run it mvn gwt:run or in hosted mode in eclipse !

Both times the same error - what can i miss ?

[heiko.braun]

Did you import it like described here?

http://community.jboss.org/wiki/Errai-IDESetup

[jhollerer]

Yes i imported it like described !

But it also fails with mvn gwt:run - so i think it cannot be related to the eclipse "setup" process - or ?

[heiko.braun]

Of course, you are right.

It's the web.xml that's wrong in the serialization example.

Replace it with the one from clientservice example:

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                  http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
         version="2.5">
 
    <servlet>
         <servlet-name>ErraiServlet</servlet-name>
         <servlet-class>org.jboss.errai.bus.server.servlet.DefaultBlockingServlet</servlet-class>
         <load-on-startup>1</load-on-startup>
     </servlet>
 
     <servlet-mapping>
         <servlet-name>ErraiServlet</servlet-name>
         <url-pattern>*.erraiBus</url-pattern>
     </servlet-mapping>
 
 
</web-app>
 

[jhollerer]

Hi Heiko,

That seems to solve the startup error - now when pressing the "Load Object" the error is:

Any ideas ?

Dismiss

Error calling remote service:  ObjectService

Additional  Details: java.lang.RuntimeException: cannot have a  conversation.  the incoming message does not specify a recipient ReplyTo  subject and you have not specified one. org.jboss.errai.bus.client.api.builder.ConversationMessageWrapper.commit(ConversationMessageWrapper.java:158)   org.jboss.errai.bus.server.ServerMessageBusImpl.send(ServerMessageBusImpl.java:349)   org.jboss.errai.bus.client.api.builder.ConversationMessageWrapper.sendNowWith(ConversationMessageWrapper.java:146)   org.jboss.errai.bus.client.api.builder.AbstractMessageBuilder$1.sendNowWith(AbstractMessageBuilder.java:41)   org.errai.samples.serialization.server.ObjectService.callback(ObjectService.java:65)   org.jboss.errai.bus.server.ServerMessageBusImpl.sendGlobal(ServerMessageBusImpl.java:322)   org.jboss.errai.bus.server.SimpleDispatcher.dispatchGlobal(SimpleDispatcher.java:30)   org.jboss.errai.bus.server.service.ErraiServiceImpl.store(ErraiServiceImpl.java:176)   org.jboss.errai.bus.server.servlet.DefaultBlockingServlet.doPost(DefaultBlockingServlet.java:96)   javax.servlet.http.HttpServlet.service(HttpServlet.java:637)   javax.servlet.http.HttpServlet.service(HttpServlet.java:717)   org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)   org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)   org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)   org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)   org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)   org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)   org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)   org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)   org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)   org.mortbay.jetty.Server.handle(Server.java:324)   org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)   org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843)   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)   org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)   org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)