Sumeru Saha [https://community.jboss.org/people/sumerus] created the discussion "Re: JTA Problem with multiple sessions" To view the discussion, visit: https://community.jboss.org/message/819875#819875 -------------------------------------------------------------- Hi Maciej, You're abslutely spot on ... one of the persistence.xml had this property as "create". This property is by default set to value "update" so didn't even notice, i checked with a fresh installation. Not sure why I changed this to create. Thanks a lot ... One more question, recently i'm observing the following exception in the server.log during startup, can you tell me what could be the reason. Is it expecting anything at startup which is missing? 14:51:46,568 ERROR [org.drools.persistence.SingleSessionCommandService] (http-/127.0.0.1:8080-4) Could not commit session: java.lang.RuntimeException: Could not find session data for id 1                at org.drools.persistence.SingleSessionCommandService.initKsession(SingleSessionCommandService.java:222) [drools-persistence-jpa-5.3.1.BRMS.jar:5.3.1.BRMS] Sumeru ---  -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/819875#819875] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]

Sumeru Saha [https://community.jboss.org/people/sumerus] created the discussion "Re: JTA Problem with multiple sessions" To view the discussion, visit: https://community.jboss.org/message/820922#820922 -------------------------------------------------------------- Hi Maciej, Another spot on reply - i'm becoming a fan of yours. I havn't seen the exception in the log after deleting the .ser file. Once this is done let me bother you little bit more with another harmless exception in my log ... I've used a *com.sample.service.Student* , in my BPMN2 process model. I instantiated this Student class in a script task. For this i needed to upload the jar containing this class as POJO Model in Guvnor. Also this jar is in the jbpm-gwt-console-server.war/WEB-INF/lib. Everything works fine but everytime i login into the  jbpm-console, the following exception appears in the server.log. can you please tell me what could be wrong ... do i need to put the jar in the jbpm-gwt-console.war also (but as far i recall i also tried that)? Thanks Sumeru --- 14:15:41,777 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage  14:15:41,785 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:796) 14:15:41,790 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.drools.agent.impl.KnowledgeAgentImpl.incrementalBuildResources(KnowledgeAgentImpl.java:987) 14:15:41,796 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:686) 14:15:41,802 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:207) 14:15:41,810 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:186) 14:15:41,819 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.kbase.DefaultKnowledgeBaseManager.buildKnowledgeAgent(DefaultKnowledgeBaseManager.java:157) 14:15:41,827 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.kbase.DefaultKnowledgeBaseManager.getKnowledgeBase(DefaultKnowledgeBaseManager.java:65) 14:15:41,837 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.StatefulKnowledgeSessionUtil.initializeStatefulKnowledgeSession(StatefulKnowledgeSessionUtil.java:102) 14:15:41,848 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.StatefulKnowledgeSessionUtil$SessionHolder.<clinit>(StatefulKnowledgeSessionUtil.java:84) 14:15:41,854 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.StatefulKnowledgeSessionUtil.getStatefulKnowledgeSession(StatefulKnowledgeSessionUtil.java:88) 14:15:41,863 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.SessionInitializer.<init>(SessionInitializer.java:25) 14:15:41,871 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.TaskManagement.<init>(TaskManagement.java:52) 14:15:41,877 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.ManagementFactory.createTaskManagement(ManagementFactory.java:26) 14:15:41,885 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jbpm.integration.console.ManagementFactory.createTaskManagement(ManagementFactory.java:19) 14:15:41,890 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jboss.bpm.console.server.TaskListFacade.getTaskManagement(TaskListFacade.java:72) 14:15:41,896 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)           at org.jboss.bpm.console.server.TaskListFacade.getTasksForIdRef(TaskListFacade.java:101) | 14:15:41,901 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | | 14:15:41,905 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) | | 14:15:41,911 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) | | 14:15:41,916 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at java.lang.reflect.Method.invoke(Method.java:601) | | 14:15:41,922 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) | | 14:15:41,932 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) | | 14:15:41,937 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) | | 14:15:41,941 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) | | 14:15:41,946 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) | | 14:15:41,952 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) | | 14:15:41,957 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) | | 14:15:41,962 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) | | 14:15:41,968 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) | | 14:15:41,974 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) | | 14:15:41,980 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) | | 14:15:41,984 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) | | 14:15:41,990 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) | | 14:15:41,995 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59) | ... 14:15:42,108 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) Caused by: java.lang.ClassNotFoundException: com.sample.Student from [Module "deployment.jbpm-gwt-console-server.war:main" from Service Module Loader] | | | | 14:15:42,116 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) | | 14:15:42,125 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) | at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468) | ... -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/820922#820922] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]

Sumeru Saha [https://community.jboss.org/people/sumerus] created the discussion "Re: JTA Problem with multiple sessions" To view the discussion, visit: https://community.jboss.org/message/821508#821508 -------------------------------------------------------------- Hi Maciej, That was so obvious - i was so much bent to find a problem with the classpath that i didn't even notice the typing mistake.. Thanks so much. Sumeru --- -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/821508#821508] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]