[jboss-jira] [JBoss JIRA] Updated: (JBRULES-2681) Drools: Unable to load session snapshot

[ https://jira.jboss.org/browse/JBRULES-2681?page=com.atlassian.jira.plugin... ] Gustavo Tenrreiro updated JBRULES-2681: --------------------------------------- Description: After an event is processed the session fails to load using JPA persistence. I ve attached a test case. It uses a Drools flow file, and a drl file. Both very simple.. The flow file has a "Start" then an action that prints a message to the console, then "End" The Drl has one rule that processes an event: import com.kgcontrols.services.company.standardsRequests.workflow.events.VoteCreatedEvent declare VoteCreatedEvent @role(event) end rule "testEvents" when VoteCreatedEvent() from entry-point "VoteCreatedStream" then System.out.println("--------------------------- YEAH the event got here"); end I can see the "YEAH the event go here" on the console so I know the rule fired. But after that, if I try to load the session from the database I get: --------------------------- YEAH the event got here ERROR 2010-09-02 10:09:26 Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException at org.drools.persistence.jpa.impl.KnowledgeStoreServiceImpl.buildComman Service(KnowledgeStoreServiceImpl.java:106) at org.drools.persistence.jpa.impl.KnowledgeStoreServiceImpl.loadStatefu lKnowledgeSession(KnowledgeStoreServiceImpl.java:74) at org.drools.persistence.jpa.JPAKnowledgeService.loadStatefulKnowledgeS ession(JPAKnowledgeService.java:118) at com.kgcontrols.services.company.standardsRequests.workflow.TestCase. loadSession(TestCase.java:136) at com.kgcontrols.services.company.standardsRequests.workflow.TestCase. start(TestCase.java:64) at org.apache.jsp.company.standardsRequest.test2_jsp._jspService(org.ap ache.jsp.company.standardsRequest.test2_jsp:51) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper .java:332) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3 14) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at com.troux.servercommon.usagelog.UsageLogFilter.doFilter(UsageLogFilte r.java:149) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:178) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica torBase.java:524) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:105) at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommon AccessLogValve.java:495) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:754) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.ja va:684) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSock et.java:876) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP ool.java:684) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.drools.persistence.jpa.impl.KnowledgeStoreServiceImpl.buildComman Service(KnowledgeStoreServiceImpl.java:91) ... 31 more Caused by: java.lang.RuntimeException: Unable to load session snapshot at org.drools.persistence.session.JPASessionMarshallingHelper.loadSnapsh ot(JPASessionMarshallingHelper.java:96) at org.drools.persistence.session.SingleSessionCommandService.initKsessi on(SingleSessionCommandService.java:196) at org.drools.persistence.session.SingleSessionCommandService.<init>(Sin gleSessionCommandService.java:159) ... 36 more Caused by: java.lang.NullPointerException at org.drools.reteoo.LeftTuple.<init>(LeftTuple.java:135) at org.drools.reteoo.LeftTuple.<init>(LeftTuple.java:121) at org.drools.marshalling.impl.InputMarshaller.readLeftTuple(InputMarsha ller.java:461) at org.drools.marshalling.impl.InputMarshaller.readFactHandles(InputMars haller.java:351) at org.drools.marshalling.impl.InputMarshaller.readSession(InputMarshall er.java:205) at org.drools.marshalling.impl.DefaultMarshaller.unmarshall(DefaultMarsh aller.java:91) at org.drools.persistence.session.JPASessionMarshallingHelper.loadSnapsh ot(JPASessionMarshallingHelper.java:91) ... 38 more ERROR 2010-09-02 10:09:26 [EXCEPTION] org.apache.jasper.JasperException: java.lang.reflect.InvocationTargetException at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspSer vletWrapper.java:510) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper .java:387) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3 14) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at com.troux.servercommon.usagelog.UsageLogFilter.doFilter(UsageLogFilte r.java:149) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:178) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica torBase.java:524) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:105) at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommon AccessLogValve.java:495) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:754) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.ja va:684) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSock et.java:876) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP ool.java:684) at java.lang.Thread.run(Thread.java:619) was: After an event is processed the session fails to load using JPA persistence. I ve attached a test case. It uses a Drools flow file, and a drl file. Both very simple.. The flow file has a "Start" then an action that prints a message to the console, then "End" The Drl has one rule that processes an event: import com.kgcontrols.services.company.standardsRequests.workflow.events.VoteCreatedEvent declare VoteCreatedEvent @role(event) end rule "testEvents" when VoteCreatedEvent() from entry-point "VoteCreatedStream" then System.out.println("--------------------------- YEAH the event got here"); end I can see the "YEAH the event go here" on the console so I know the rule fired. But after that, if I try to load the session from the database I get: 1. INFO 2010-09-02 08:28:56 [ERROR] com.kgcontrols.services.company.standardsRequ 2. ests.workflow.TimerRunner java.lang.reflect.InvocationTargetException 3. java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException 4. at org.drools.persistence.jpa.impl.KnowledgeStoreServiceImpl.buildComman 5. Service(KnowledgeStoreServiceImpl.java:106) 6. at org.drools.persistence.jpa.impl.KnowledgeStoreServiceImpl.loadStatefu 7. lKnowledgeSession(KnowledgeStoreServiceImpl.java:74) 8. at org.drools.persistence.jpa.JPAKnowledgeService.loadStatefulKnowledgeS 9. ession(JPAKnowledgeService.java:118) 10. at com.kgcontrols.services.company.standardsRequests.workflow.JPAKnowle 11. dgeSessionLookup.loadSession(JPAKnowledgeSessionLookup.java:103) 12. at com.kgcontrols.services.company.standardsRequests.workflow.TimerRunn 13. er.run(TimerRunner.java:39) 14. at java.lang.Thread.run(Thread.java:619) 15. Caused by: java.lang.reflect.InvocationTargetException 16. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 17. 18. at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct 19. orAccessorImpl.java:39) 20. at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC 21. onstructorAccessorImpl.java:27) 22. at java.lang.reflect.Constructor.newInstance(Constructor.java:513) 23. at org.drools.persistence.jpa.impl.KnowledgeStoreServiceImpl.buildComman 24. Service(KnowledgeStoreServiceImpl.java:91) 25. ... 5 more 26. Caused by: java.lang.RuntimeException: Unable to load session snapshot 27. at org.drools.persistence.session.JPASessionMarshallingHelper.loadSnapsh 28. ot(JPASessionMarshallingHelper.java:96) 29. at org.drools.persistence.session.SingleSessionCommandService.initKsessi 30. on(SingleSessionCommandService.java:196) 31. at org.drools.persistence.session.SingleSessionCommandService.<init>(Sin 32. gleSessionCommandService.java:159) 33. ... 10 more 34. Caused by: java.lang.NullPointerException 35. at org.drools.reteoo.LeftTuple.<init>(LeftTuple.java:135) 36. at org.drools.reteoo.LeftTuple.<init>(LeftTuple.java:121) 37. at org.drools.marshalling.impl.InputMarshaller.readLeftTuple(InputMarsha 38. ller.java:461) 39. at org.drools.marshalling.impl.InputMarshaller.readFactHandles(InputMars 40. haller.java:351) 41. at org.drools.marshalling.impl.InputMarshaller.readSession(InputMarshall 42. er.java:205) 43. at org.drools.marshalling.impl.DefaultMarshaller.unmarshall(DefaultMarsh 44. aller.java:91) 45. at org.drools.persistence.session.JPASessionMarshallingHelper.loadSnapsh 46. ot(JPASessionMarshallingHelper.java:91) 47. ... 12 more -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira