[rules-users] errors with GWT-console

I am a new to Drools Flow, guvnor, and GWT-console-server-drools. I am trying to deploy Gwt-console-server and to get a process running in it. I am using Drools 5.1.0.M1, JBoss-AS 4.2.3.GA. I have followed all the instruction in the Drools Flow 5.1.0 Documentation, the chapter about Console. When I start the aplication server I get the following errors: 10:31:16,957 INFO [TomcatDeployer] deploy, ctxPath=/gwt-console-server, warUrl= .../deploy/gwt-console-server-drools-5.1.0.M1.war/ 10:31:17,275 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap contextInitialized WARNING: The use of javax.ws.rs.core.Application is deprecated, please use javax .ws.rs.Application as a context-param instead 10:31:17,277 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap setProviders INFO: Adding listed @Provider class org.jboss.bpm.report.FileWriter 10:31:17,309 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider DataSourceProvider 10:31:17,312 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider DefaultTextPlain 10:31:17,315 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider org.jboss.resteasy.plugins.providers.StringTextSta r 10:31:17,319 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider org.jboss.resteasy.plugins.providers.InputStreamPr ovider 10:31:17,323 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider org.jboss.resteasy.plugins.providers.ByteArrayProv ider 10:31:17,327 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider org.jboss.resteasy.plugins.providers.FormUrlEncode dProvider 10:31:17,330 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider org.jboss.resteasy.plugins.providers.FormUrlEncode dProvider 10:31:17,334 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin register INFO: Added built in provider org.jboss.resteasy.plugins.providers.StreamingOutp utProvider 10:31:17,342 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalReader INFO: Adding built in provider org.jboss.resteasy.plugins.providers.multipart.Mu ltipartReader 10:31:17,361 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalReader INFO: Adding built in provider org.jboss.resteasy.plugins.providers.multipart.Li stMultipartReader 10:31:17,364 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalReader INFO: Adding built in provider org.jboss.resteasy.plugins.providers.multipart.Mu ltipartFormDataReader 10:31:17,369 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalReader INFO: Adding built in provider org.jboss.resteasy.plugins.providers.multipart.Ma pMultipartFormDataReader 10:31:17,373 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalWriter INFO: Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.Mul tipartWriter 10:31:17,380 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalWriter INFO: Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.Mul tipartFormDataWriter 10:31:17,385 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalWriter INFO: Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.Lis tMultipartWriter 10:31:17,388 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalWriter INFO: Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.Map MultipartFormDataWriter 10:31:17,391 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalReader INFO: Adding built in provider org.jboss.resteasy.plugins.providers.multipart.Mu ltipartFormAnnotationReader 10:31:17,397 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalWriter INFO: Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.Mul tipartFormAnnotationWriter 10:31:17,403 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalProvider INFO: Adding built in provider org.jboss.resteasy.plugins.providers.IIOImageProv ider 10:31:17,409 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.p roviders.RegisterBuiltin optionalProvider INFO: Adding built in provider org.jboss.resteasy.plugins.providers.multipart.Mi meMultipartProvider 10:31:17,462 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Deploying javax.ws.rs.core.Application: class org.jboss.bpm.console.server .ConsoleServerApplication 10:31:17,466 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.report.ReportFacade from Applicati on javax.ws.rs.core.Application 10:31:17,502 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.console.server.TaskMgmtFacade from Application javax.ws.rs.core.Application 10:31:17,519 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.console.server.ProcessMgmtFacade f rom Application javax.ws.rs.core.Application 10:31:17,532 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.console.server.TaskListFacade from Application javax.ws.rs.core.Application 10:31:17,536 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.console.server.UserMgmtFacade from Application javax.ws.rs.core.Application 10:31:17,543 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.console.server.FormProcessingFacad e from Application javax.ws.rs.core.Application 10:31:17,552 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.console.server.EngineFacade from A pplication javax.ws.rs.core.Application 10:31:17,558 ERROR [STDERR] Apr 9, 2010 10:31:17 AM org.jboss.resteasy.plugins.s erver.servlet.ResteasyBootstrap processApplication INFO: Adding singleton resource org.jboss.bpm.console.server.InfoFacade from App lication javax.ws.rs.core.Application 10:31:17,593 INFO [TomcatDeployer] deploy, ctxPath=/jmx-console, warUrl=.../dep loy/jmx-console.war/ 10:31:17,769 INFO [Http11Protocol] Starting Coyote HTTP/1.1 on http-127.0.0.1-8 080 10:31:17,797 INFO [AjpProtocol] Starting Coyote AJP/1.3 on ajp-127.0.0.1-8009 10:31:17,815 INFO [Server] JBoss (MX MicroKernel) [4.2.3.GA (build: SVNTag=JBos s_4_2_3_GA date=200807181417)] Started in 26s:425ms I can enter the GWT-Console but when I search the process I get the following errors: - URL: 'http://127.0.0.1:8080/gwt-console-server/rs/process/definitions' - Action: 'org.jboss.bpm.console.client.process.UpdateDefinitionsAction' - Exception: 'class com.google.gwt.http.client.RequestException' - URL: 'http://127.0.0.1:8080/gwt-console-server/rs/process/definitions' - Action: 'org.jboss.bpm.console.client.process.UpdateDefinitionsAction' - Exception: 'class com.google.gwt.http.client.RequestException' HTTP 500: HTTP Status 500 - ------------------------------ *type* Exception report *message* *description* *The server encountered an internal error () that prevented it from fulfilling this request.* *exception* org.jboss.resteasy.spi.UnhandledException: java.lang.RuntimeException: Could not initialize stateful knowledge session: null org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:319) org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:230) org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:206) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:360) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) *root cause* java.lang.RuntimeException: Could not initialize stateful knowledge session: null org.drools.integration.console.DroolsFlowCommandDelegate.newStatefulKnowledgeSession(DroolsFlowCommandDelegate.java:69) org.drools.integration.console.DroolsFlowCommandDelegate.getSession(DroolsFlowCommandDelegate.java:77) org.drools.integration.console.DroolsFlowCommandDelegate.<init>(DroolsFlowCommandDelegate.java:35) org.drools.integration.console.DroolsFlowProcessManagement.<init>(DroolsFlowProcessManagement.java:20) org.drools.integration.console.DroolsFlowManagementFactory.createProcessManagement(DroolsFlowManagementFactory.java:11) org.jboss.bpm.console.server.ProcessMgmtFacade.getProcessManagement(ProcessMgmtFacade.java:83) org.jboss.bpm.console.server.ProcessMgmtFacade.getDefinitionsJSON(ProcessMgmtFacade.java:107) 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) org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117) org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260) org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232) org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166) org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96 Thanks a lot in advance for your Help !