[jboss-user] [JBoss jBPM] - possible nonthreadsafe access to session

[TheEJBPope]

Hi,

When trying to delete a process instance from the web application, I'm getting the exception underneath. 

It seems to be related to subprocesses. When the "super-process" includes a call to a sub-process, it runs and ends normally but can't be deleted via the jbpm web application any more. When running the process without the sub-process included, it can be deleted.

Anyone any clue ?

Btw, I'm using jbpm 3.1.2 with the corresponding starter's kit.

Jan

11:16:53,529 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception
  | org.jbpm.JbpmException: problem closing services {persistence=org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session}
  |         at org.jbpm.svc.Services.close(Services.java:223)
  |         at org.jbpm.JbpmContext.close(JbpmContext.java:139)
  |         at org.jbpm.web.JbpmContextFilter.doFilter(JbpmContextFilter.java:85)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  |         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  |         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  |         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |         at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
  |         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  |         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  |         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  |         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  |         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |         at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  |         at java.lang.Thread.run(Thread.java:595)
  | Caused by: org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session
  |         at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:172)
  |         at org.jbpm.svc.Services.close(Services.java:211)
  |         ... 24 more
  | Caused by: org.hibernate.AssertionFailure: possible nonthreadsafe access to session
  |         at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:83)
  |         at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
  |         at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
  |         at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:144)
  |         at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
  |         at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
  |         at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
  |         at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
  |         at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
  |         at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:162)
  |         ... 25 more
  | 

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