1 Reply Latest reply on Nov 23, 2011 9:01 AM by Jack Q tao

    How to create a knowledgeSession (Websphare 6.1)

    sandeep kumar Newbie

      Hi

      How to create a knowledgesession in websphare6.1. I am using the following code but it throws exception

      KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();

      kbuilder.add(ResourceFactory.newClassPathResource("xyz-process.bpmn"), ResourceType.BPMN2);

      KnowledgeBase kbase = kbuilder.newKnowledgeBase(); EntityManagerFactory emf = Persistence.createEntityManagerFactory( "org.jbpm.persistence.jpa" );

      Environment env = KnowledgeBaseFactory.newEnvironment();

      env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf );

       

      env.set( EnvironmentName.GLOBALS, new MapGlobalResolver() );

       

      Properties properties = new Properties();

      properties.put("drools.processInstanceManagerFactory", "org.jbpm.persistence.processinstance.JPAProcessInstanceManagerFactory");

      properties.put("drools.processSignalManagerFactory", "org.jbpm.persistence.processinstance.JPASignalManagerFactory");

      TransactionManager tm =

      new WebSphereTransactionManagerLookup().getTransactionManager(properties);

      env.set( EnvironmentName.TRANSACTION_MANAGER, tm );

      KnowledgeSessionConfiguration config = KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);

      JPAKnowledgeService.newStatefulKnowledgeSession(kbase, config, env)

       

       

       

       

      <persistence-unit name="org.jbpm.persistence.jpa"

      transaction-type="JTA">

      <provider>org.hibernate.ejb.HibernatePersistence</provider>

      <jta-data-source>java:comp/env/jdbc/sandeep</jta-data-source>

       

                      <!--<non-jta-data-source>java:comp/env/jdbc/sandeep1</non-jta-data-source>

      --><mapping-file>META-INF/jpa-orm.xml</mapping-file>

      <class>org.drools.persistence.info.SessionInfo</class>

      <class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>

      <class>org.jbpm.persistence.processinstance.ProcessInstanceEventInfo</class>

      <class>org.drools.persistence.info.WorkItemInfo</class>

      <class>org.jbpm.process.audit.ProcessInstanceLog</class>

      <class>org.jbpm.process.audit.VariableInstanceLog</class>

      <!--<class>org.jbpm.process.audit.NodeInstanceLog</class>      -->

      <properties>

      <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect" />

      <property name="hibernate.connection.autocommit" value="false" />

      <property name="hibernate.max_fetch_depth" value="3" />

                              <property name="hibernate.hbm2ddl.auto" value="create" />

      <property name="hibernate.show_sql" value="true" />

      <property name="hibernate.transaction.manager_lookup_class"

      value="org.hibernate.transaction.WebSphereTransactionManagerLookup" />

         <!--<property name="hibernate.transaction.manager_lookup_class"

      value="org.hibernate.transaction.JBossTransactionManagerLookup" />

      --><!--<property name="hibernate.transaction.manager_lookup_class"

      value="org.hibernate.transaction.BTMTransactionManagerLookup"/>

       

      --></properties>

      </persistence-unit>

       

      Exception block

      com.ibm.ws.ffdc.IncidentStreamImpl open FFDC0009I: FFDC opened incident stream file C:\Program Files\IBM\WebSphere\AppServer1\profiles\AppSrv02\logs\ffdc\server1_00000016_11.11.23_05.59.20_0.txt

      [11/23/11 5:59:20:572 EST] 00000016 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file C:\Program Files\IBM\WebSphere\AppServer1\profiles\AppSrv02\logs\ffdc\server1_00000016_11.11.23_05.59.20_0.txt

      [11/23/11 5:59:20:572 EST] 00000016 ServletWrappe E   SRVE0100E: Did not realize  init() exception thrown by servlet TaskProcessServlet: java.lang.RuntimeException: error while creating session

          at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:52)

          at javax.servlet.GenericServlet.init(GenericServlet.java:256)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:191)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:326)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1143)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:159)

          at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)

          at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:790)

          at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:470)

          at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:307)

          at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:334)

          at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:90)

          at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:665)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:618)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:395)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:611)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1302)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1165)

          at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:587)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:832)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:951)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2129)

          at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)

          at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)

      Caused by: java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:130)

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.newStatefulKnowledgeSession(KnowledgeStoreServiceImpl.java:54)

          at org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:122)

          at com.sample.processserver.JbpmAPIUtil.createSession(JbpmAPIUtil.java:279)

          at com.sample.processserver.JbpmAPIUtil.getSession(JbpmAPIUtil.java:245)

          at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:38)

          ... 24 more

      Caused by: java.lang.reflect.InvocationTargetException

          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

          at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:67)

          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

          at java.lang.reflect.Constructor.newInstance(Constructor.java:522)

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:116)

          ... 29 more

      Caused by: java.lang.ClassCastException: [Ljava.lang.Object; incompatible with [Ljava.util.Map$Entry;

          at org.drools.marshalling.impl.OutputMarshaller.writePropagationContexts(OutputMarshaller.java:716)

          at org.drools.marshalling.impl.OutputMarshaller.writeFactHandles(OutputMarshaller.java:280)

          at org.drools.marshalling.impl.OutputMarshaller.writeSession(OutputMarshaller.java:107)

          at org.drools.marshalling.impl.DefaultMarshaller.marshall(DefaultMarshaller.java:136)

          at org.drools.persistence.SessionMarshallingHelper.getSnapshot(SessionMarshallingHelper.java:72)

          at org.drools.persistence.info.SessionInfo.update(SessionInfo.java:81)

          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

          at java.lang.reflect.Method.invoke(Method.java:618)

          at org.hibernate.ejb.event.BeanCallback.invoke(BeanCallback.java:23)

          at org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:80)

          at org.hibernate.ejb.event.EntityCallbackHandler.preCreate(EntityCallbackHandler.java:49)

          at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:48)

          at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:154)

          at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:110)

          at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)

          at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:645)

          at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:619)

          at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:623)

          at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:220)

          at org.drools.persistence.jpa.JpaPersistenceContext.persist(JpaPersistenceContext.java:17)

          at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:125)

          ... 34 more

       

      [11/23/11 5:59:20:587 EST] 00000016 ServletWrappe E   Deregister the mbean because of uncaught init() exception thrown by servlet TaskProcessServlet: javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception thrown by servlet

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:243)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:326)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1143)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:159)

          at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)

          at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:790)

          at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:470)

          at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:307)

          at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:334)

          at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:90)

          at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:665)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:618)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:395)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:611)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1302)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1165)

          at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:587)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:832)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:951)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2129)

          at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)

          at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)

      ---- Begin backtrace for Nested Throwables

      java.lang.RuntimeException: error while creating session

          at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:52)

          at javax.servlet.GenericServlet.init(GenericServlet.java:256)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:191)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:326)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1143)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:159)

          at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)

          at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:790)

          at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:470)

          at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:307)

          at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:334)

          at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:90)

          at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:665)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:618)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:395)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:611)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1302)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1165)

          at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:587)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:832)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:951)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2129)

          at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)

          at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)

      Caused by: java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:130)

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.newStatefulKnowledgeSession(KnowledgeStoreServiceImpl.java:54)

          at org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:122)

          at com.sample.processserver.JbpmAPIUtil.createSession(JbpmAPIUtil.java:279)

          at com.sample.processserver.JbpmAPIUtil.getSession(JbpmAPIUtil.java:245)

          at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:38)

          ... 24 more

      Caused by: java.lang.reflect.InvocationTargetException

          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

          at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:67)

          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

          at java.lang.reflect.Constructor.newInstance(Constructor.java:522)

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:116)

          ... 29 more

      Caused by: java.lang.ClassCastException: [Ljava.lang.Object; incompatible with [Ljava.util.Map$Entry;

          at org.drools.marshalling.impl.OutputMarshaller.writePropagationContexts(OutputMarshaller.java:716)

          at org.drools.marshalling.impl.OutputMarshaller.writeFactHandles(OutputMarshaller.java:280)

          at org.drools.marshalling.impl.OutputMarshaller.writeSession(OutputMarshaller.java:107)

          at org.drools.marshalling.impl.DefaultMarshaller.marshall(DefaultMarshaller.java:136)

          at org.drools.persistence.SessionMarshallingHelper.getSnapshot(SessionMarshallingHelper.java:72)

          at org.drools.persistence.info.SessionInfo.update(SessionInfo.java:81)

          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

          at java.lang.reflect.Method.invoke(Method.java:618)

          at org.hibernate.ejb.event.BeanCallback.invoke(BeanCallback.java:23)

          at org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:80)

          at org.hibernate.ejb.event.EntityCallbackHandler.preCreate(EntityCallbackHandler.java:49)

          at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:48)

          at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:154)

          at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:110)

          at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)

          at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:645)

          at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:619)

          at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:623)

          at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:220)

          at org.drools.persistence.jpa.JpaPersistenceContext.persist(JpaPersistenceContext.java:17)

          at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:125)

          ... 34 more

      ,

      [11/23/11 5:59:20:587 EST] 00000016 WebExtensionP E   Error occured while preparing the servlet for initialization.

      javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception thrown by servlet

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:243)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:326)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1143)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:159)

          at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)

          at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:790)

          at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:470)

          at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:307)

          at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:334)

          at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:90)

          at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:665)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:618)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:395)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:611)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1302)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1165)

          at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:587)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:832)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:951)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2129)

          at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)

          at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)

      ---- Begin backtrace for Nested Throwables

      java.lang.RuntimeException: error while creating session

          at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:52)

          at javax.servlet.GenericServlet.init(GenericServlet.java:256)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:191)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:326)

          at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1143)

          at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:159)

          at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)

          at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:790)

          at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:470)

          at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:307)

          at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:334)

          at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:90)

          at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:665)

          at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:618)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:395)

          at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:611)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1302)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1165)

          at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:587)

          at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:832)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:951)

          at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2129)

          at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)

          at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)

      Caused by: java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:130)

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.newStatefulKnowledgeSession(KnowledgeStoreServiceImpl.java:54)

          at org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:122)

          at com.sample.processserver.JbpmAPIUtil.createSession(JbpmAPIUtil.java:279)

          at com.sample.processserver.JbpmAPIUtil.getSession(JbpmAPIUtil.java:245)

          at com.sample.processserver.TaskProcessServlet.init(TaskProcessServlet.java:38)

          ... 24 more

      Caused by: java.lang.reflect.InvocationTargetException

          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

          at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:67)

          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

          at java.lang.reflect.Constructor.newInstance(Constructor.java:522)

          at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:116)

          ... 29 more

      Caused by: java.lang.ClassCastException: [Ljava.lang.Object; incompatible with [Ljava.util.Map$Entry;

          at org.drools.marshalling.impl.OutputMarshaller.writePropagationContexts(OutputMarshaller.java:716)

          at org.drools.marshalling.impl.OutputMarshaller.writeFactHandles(OutputMarshaller.java:280)

          at org.drools.marshalling.impl.OutputMarshaller.writeSession(OutputMarshaller.java:107)

          at org.drools.marshalling.impl.DefaultMarshaller.marshall(DefaultMarshaller.java:136)

          at org.drools.persistence.SessionMarshallingHelper.getSnapshot(SessionMarshallingHelper.java:72)

          at org.drools.persistence.info.SessionInfo.update(SessionInfo.java:81)

          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

          at java.lang.reflect.Method.invoke(Method.java:618)

          at org.hibernate.ejb.event.BeanCallback.invoke(BeanCallback.java:23)

          at org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:80)

          at org.hibernate.ejb.event.EntityCallbackHandler.preCreate(EntityCallbackHandler.java:49)

          at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:48)

          at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:154)

          at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:110)

          at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)

          at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:645)

          at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:619)

          at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:623)

          at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:220)

          at org.drools.persistence.jpa.JpaPersistenceContext.persist(JpaPersistenceContext.java:17)

          at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:125)