Hi there, i am having the exception above mentioned, I would appreciate very much if someone could help me. I have this methods: public class GexpRequestProcessor extends TilesRequestProcessor { public void process(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException { // Wrap multipart requests with a special wrapper request = processMultipart(request); // Identify the path component we will use to select a mapping String path = processPath(request, response); if (path == null) { return; } if (log.isDebugEnabled()) { log.debug("Processing a '" + request.getMethod() + "' for path '" + path + "'"); } // Select a Locale for the current user if requested processLocale(request, response); // Set the content type and no-caching headers if requested processContent(request, response); processNoCache(request, response); // General purpose preprocessing hook if (!processPreprocess(request, response)) { return; } this.processCachedMessages(request, response); // Identify the mapping for this request ActionMapping mapping = processMapping(request, response, path); if (mapping == null) { return; } // Check for any role required to perform this action if (!processRoles(request, response, mapping)) { return; } // Process any ActionForm bean related to this request ActionForm form = processActionForm(request, response, mapping); processPopulate(request, response, form, mapping); // Validate any fields of the ActionForm bean, if applicable try { if (!processValidate(request, response, form, mapping)) { return; } } catch (InvalidCancelException e) { ActionForward forward = processException(request, response, e, form, mapping); processForwardConfig(request, response, forward); return; } catch (IOException e) { throw e; } catch (ServletException e) { throw e; } //abrimos el contexto de jbpm. processOpenJbpm(); // Process a forward or include specified by this mapping if (!processForward(request, response, mapping)) { return; } if (!processInclude(request, response, mapping)) { return; } // Create or acquire the Action instance to process this request Action action = processActionCreate(request, response, mapping); if (action == null) { return; } // Call the Action instance itself ActionForward forward = processActionPerform(request, response, action, form, mapping); // Process the returned ActionForward instance processForwardConfig(request, response, forward); //cerramos el contexto de jbpm. try{ processCloseJbpm(); } catch(Exception ex){ ex.printStackTrace(); //ex.toString(); } } /** * Abrimos el contexto de jbpm que se usara en las Actions. */ protected void processOpenJbpm(){ JbpmContext ctx = JbpmContext.getCurrentJbpmContext(); if( ctx == null ){ JbpmConfiguration.getInstance().createJbpmContext(); } } /** * Cerramos el contexto de jbpm comprobando si aun sigue abierto. Deberia seguir siempre abierto * llegados a este punto. * */ protected void processCloseJbpm(){ //se mira que no se haya cerrado previamente el contexto de jbpm. if( JbpmContext.getCurrentJbpmContext() != null ){ if( JbpmContext.getCurrentJbpmContext().getSession().isOpen() ){ JbpmContext.getCurrentJbpmContext().close(); } } } where processActionPerform has most my integration with struts ActionForward (I overwrite some methods) On the other hand, I in the hibernate.cfg file JBPM tables plus my own tables, all against the same mySQL Schema. Well, every now and then, in a random way, i get the following error: 13:49:27,168 [http-8080-Processor25] ERROR DbPersistenceService : problem rolling back after failed commit org.hibernate.TransactionException: Transaction not successfully started at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:149) at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:165) at org.jbpm.svc.Services.close(Services.java:211) at org.jbpm.JbpmContext.close(JbpmContext.java:138) at net.cofb.gexp.struts.GexpRequestProcessor.processCloseJbpm(GexpRequestProcessor.java:200) at net.cofb.gexp.struts.GexpRequestProcessor.process(GexpRequestProcessor.java:153) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 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:868) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Unknown Source) org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171) at org.jbpm.svc.Services.close(Services.java:211) at org.jbpm.JbpmContext.close(JbpmContext.java:138) at net.cofb.gexp.struts.GexpRequestProcessor.processCloseJbpm(GexpRequestProcessor.java:200) at net.cofb.gexp.struts.GexpRequestProcessor.process(GexpRequestProcessor.java:153) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 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:868) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Unknown Source) Caused by: org.hibernate.TransactionException: Transaction not successfully started at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:100) at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161) ... 22 more 13:49:27,184 [http-8080-Processor25] ERROR Services : problem closing service 'persistence' org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171) at org.jbpm.svc.Services.close(Services.java:211) at org.jbpm.JbpmContext.close(JbpmContext.java:138) at net.cofb.gexp.struts.GexpRequestProcessor.processCloseJbpm(GexpRequestProcessor.java:200) at net.cofb.gexp.struts.GexpRequestProcessor.process(GexpRequestProcessor.java:153) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 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:868) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Unknown Source) Caused by: org.hibernate.TransactionException: Transaction not successfully started at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:100) at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161) ... 22 more 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:138) at net.cofb.gexp.struts.GexpRequestProcessor.processCloseJbpm(GexpRequestProcessor.java:200) at net.cofb.gexp.struts.GexpRequestProcessor.process(GexpRequestProcessor.java:153) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 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:868) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Unknown Source) Caused by: org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171) at org.jbpm.svc.Services.close(Services.java:211) ... 21 more Caused by: org.hibernate.TransactionException: Transaction not successfully started at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:100) at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161) ... 22 more Do anybody see anything?? any trace?? any light in this dark?? THank you very much and best regards View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972905#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...