[jboss-user] [jBPM] - eternal exception : jBPM seam 'Session is closed!'

Abdurrahman Nasr [http://community.jboss.org/people/abdurrahman_nasr] created the discussion "eternal exception : jBPM seam 'Session is closed!'" To view the discussion, visit: http://community.jboss.org/message/537217#537217 -------------------------------------------------------------- Hi guys.. I have an exception which occurs when seam container try to create Business Process from processdefinition.xml. using annotation like ============================== @CreateProcess(definition = "todo_BP")     public String createTodo() {         System.out.println("==========Proces created========");         return "success";     } ============================== I have digged for this exception days and nights :-/ and nobody answer it, neither the community. here is the exception ================================================== 16:57:35,332 ERROR [GraphSession] org.hibernate.SessionException: Session is closed! 16:57:35,348 ERROR [GraphSession] org.hibernate.SessionException: Session is closed! 16:57:35,348 ERROR [SeamPhaseListener] swallowing exception org.jbpm.JbpmException: could not get process instance 30     at org.jbpm.db.GraphSession.getProcessInstance(GraphSession.java:311)     at org.jbpm.JbpmContext.getProcessInstanceForUpdate(JbpmContext.java:378)     at org.jboss.seam.bpm.ProcessInstance$1.work(ProcessInstance.java:49)     at org.jboss.seam.bpm.ProcessInstance$1.work(ProcessInstance.java:43)     at org.jboss.seam.util.Work.workInTransaction(Work.java:47)     at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)     at java.lang.reflect.Method.invoke(Method.java:597)     at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)     at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)     at org.jboss.seam.Component.callComponentMethod(Component.java:2249)     at org.jboss.seam.Component.unwrap(Component.java:2275)     at org.jboss.seam.Component.getInstance(Component.java:2041)     at org.jboss.seam.Component.getInstance(Component.java:2000)     at org.jboss.seam.Component.getInstance(Component.java:1994)     at org.jboss.seam.Component.getInstance(Component.java:1967)     at org.jboss.seam.Component.getInstance(Component.java:1962)     at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65)     at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:229)     at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:217)     at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:68)     at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209)     at org.jboss.seam.Component.getInstance(Component.java:1982)     at org.jboss.seam.Component.getInstance(Component.java:1977)     at org.jboss.seam.Component.getInstance(Component.java:1957)     at org.jboss.seam.Component.getInstance(Component.java:1952)     at org.jboss.seam.persistence.PersistenceContexts.instance(PersistenceContexts.java:82)     at org.jboss.seam.jsf.SeamPhaseListener.beforeRenderResponse(SeamPhaseListener.java:493)     at org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseListener.java:148)     at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:118)     at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:214)     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:96)     at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)     at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)     at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)     at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)     at java.lang.Thread.run(Thread.java:619) Caused by: org.hibernate.SessionException: Session is closed!     at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:72)     at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:901)     at org.hibernate.impl.SessionImpl.get(SessionImpl.java:842)     at org.hibernate.impl.SessionImpl.get(SessionImpl.java:835)     at org.jbpm.db.GraphSession.getProcessInstance(GraphSession.java:307)     ... 78 more 16:57:35,348 ERROR [SynchronizationRegistry] Exception processing transaction Synchronization before completion org.hibernate.SessionException: Session is closed!     at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:72)     at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1020)     at org.jboss.seam.bpm.ManagedJbpmContext.beforeCompletion(ManagedJbpmContext.java:116)     at org.jboss.seam.transaction.SynchronizationRegistry.beforeTransactionCompletion(SynchronizationRegistry.java:62)     at org.jboss.seam.transaction.SeSynchronizations.beforeTransactionCommit(SeSynchronizations.java:49)     at org.jboss.seam.transaction.UTTransaction.commit(UTTransaction.java:49)     at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:613)     at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:604)     at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsAfterPhase(SeamPhaseListener.java:345)     at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:245)     at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:196)     at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:175)     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:114)     at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)     at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)     at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)     at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)     at java.lang.Thread.run(Thread.java:619) 16:57:35,348 ERROR [GraphSession] org.hibernate.SessionException: Session is closed! 16:57:35,348 WARN  [SeamPhaseListener] uncaught exception, passing to exception handler org.jbpm.JbpmException: could not get process instance 30     at org.jbpm.db.GraphSession.getProcessInstance(GraphSession.java:311)     at org.jbpm.JbpmContext.getProcessInstanceForUpdate(JbpmContext.java:378)     at org.jboss.seam.bpm.ProcessInstance$1.work(ProcessInstance.java:49)     at org.jboss.seam.bpm.ProcessInstance$1.work(ProcessInstance.java:43)     at org.jboss.seam.util.Work.workInTransaction(Work.java:47)     at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)     at java.lang.reflect.Method.invoke(Method.java:597)     at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)     at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)     at org.jboss.seam.Component.callComponentMethod(Component.java:2249)     at org.jboss.seam.Component.unwrap(Component.java:2275)     at org.jboss.seam.Component.getInstance(Component.java:2041)     at org.jboss.seam.Component.getInstance(Component.java:2000)     at org.jboss.seam.Component.getInstance(Component.java:1994)     at org.jboss.seam.Component.getInstance(Component.java:1967)     at org.jboss.seam.Component.getInstance(Component.java:1962)     at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65)     at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:229)     at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:217)     at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:68)     at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209)     at org.jboss.seam.Component.getInstance(Component.java:1982)     at org.jboss.seam.Component.getInstance(Component.java:1977)     at org.jboss.seam.Component.getInstance(Component.java:1957)     at org.jboss.seam.Component.getInstance(Component.java:1952)     at org.jboss.seam.persistence.PersistenceContexts.instance(PersistenceContexts.java:82)     at org.jboss.seam.jsf.SeamPhaseListener.afterRenderResponse(SeamPhaseListener.java:506)     at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:249)     at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:196)     at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:175)     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:114)     at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)     at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)     at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)     at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)     at java.lang.Thread.run(Thread.java:619) Caused by: org.hibernate.SessionException: Session is closed!     at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:72)     at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:901)     at org.hibernate.impl.SessionImpl.get(SessionImpl.java:842)     at org.hibernate.impl.SessionImpl.get(SessionImpl.java:835)     at org.jbpm.db.GraphSession.getProcessInstance(GraphSession.java:307)     ... 78 more 16:57:35,348 ERROR [GraphSession] org.hibernate.SessionException: Session is closed! 16:57:35,348 ERROR [SeamPhaseListener] swallowing exception org.jbpm.JbpmException: could not get process instance 30     at org.jbpm.db.GraphSession.getProcessInstance(GraphSession.java:311)     at org.jbpm.JbpmContext.getProcessInstanceForUpdate(JbpmContext.java:378)     at org.jboss.seam.bpm.ProcessInstance$1.work(ProcessInstance.java:49)     at org.jboss.seam.bpm.ProcessInstance$1.work(ProcessInstance.java:43)     at org.jboss.seam.util.Work.workInTransaction(Work.java:47)     at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)     at java.lang.reflect.Method.invoke(Method.java:597)     at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)     at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)     at org.jboss.seam.Component.callComponentMethod(Component.java:2249)     at org.jboss.seam.Component.unwrap(Component.java:2275)     at org.jboss.seam.Component.getInstance(Component.java:2041)     at org.jboss.seam.Component.getInstance(Component.java:2000)     at org.jboss.seam.Component.getInstance(Component.java:1994)     at org.jboss.seam.Component.getInstance(Component.java:1967)     at org.jboss.seam.Component.getInstance(Component.java:1962)     at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65)     at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:229)     at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:217)     at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:68)     at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209)     at org.jboss.seam.Component.getInstance(Component.java:1982)     at org.jboss.seam.Component.getInstance(Component.java:1977)     at org.jboss.seam.Component.getInstance(Component.java:1957)     at org.jboss.seam.Component.getInstance(Component.java:1952)     at org.jboss.seam.persistence.PersistenceContexts.instance(PersistenceContexts.java:82)     at org.jboss.seam.jsf.SeamPhaseListener.afterRenderResponse(SeamPhaseListener.java:506)     at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:249)     at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:196)     at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:175)     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:114)     at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)     at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)     at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)     at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)     at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)     at java.lang.Thread.run(Thread.java:619) Caused by: org.hibernate.SessionException: Session is closed!     at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:72)     at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:901)     at org.hibernate.impl.SessionImpl.get(SessionImpl.java:842)     at org.hibernate.impl.SessionImpl.get(SessionImpl.java:835)     at org.jbpm.db.GraphSession.getProcessInstance(GraphSession.java:307)     ... 78 more ================================================================================================ /*process definition file*/ //todo.jpdl.xml ---------------------------------------------------------------------------------------------------------------------------------------- <process-definition name="todo_BP">     <start-state name="start">         <transition to="todo" />     </start-state>     <task-node name="todo">         <task name="todo" description="This is a test">             <assignment actor-id="manager" />         </task>         <transition to="done" name="toend"/>     </task-node>     <end-state name="done" >         <event type="process-start">             <script name="s">                 System.out.println(&quot;Reached to the end&quot;);             </script>         </event>     </end-state> </process-definition> ---------------------------------------------------------------------------------------------------------------------------------------- /*Creator Bean*/ //TodoList.java ---------------------------------------------------------------------------------------------------------------------------------------- package net.anasr; import org.jboss.seam.annotations.Name; import org.jboss.seam.annotations.bpm.CreateProcess; import org.jboss.seam.annotations.bpm.EndTask; import org.jboss.seam.annotations.bpm.StartTask; @Name("todoList") public class TodoList {     private String description;     public String getDescription() {         return (description==null?"No description associated with this element":description);     }     public void setDescription(String description) {         this.description = description;     }     @CreateProcess(definition = "todo_BP")     public String createTodo() {         System.out.println("==========Proces created========");         return "success";     }     @StartTask     @EndTask     public String done() {         System.out.println("==========Proces Done========");         return "done";             } } ---------------------------------------------------------------------------------------------------------------------------------------- plz it's urgent matter, any one knows, plz tell Thank...! -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/537217#537217] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]