Swaminathan Bhaskar [https://community.jboss.org/people/swaminathan.bhaskar] created the discussion
"Re: Restart JBPM5 Process after system crash" To view the discussion, visit: https://community.jboss.org/message/741104#741104 -------------------------------------------------------------- Is this the correct way to identify and restart a crashed process instance ? ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(sessionId, kbase, null, env); if (ksession != null) { Collection instances = ksession.getProcessInstances(); if (instances != null && instances.size() > 0) { for (ProcessInstance processInstance : instances) { System.out.printf("\n*** Restarting old Business process [%s]\n", processInstance.getProcessId()); // Start the BPM process ksession.startProcessInstance(processInstance.getId()); // Trigger the signal ksession.signalEvent("Trigger", null); // Did the process instance complete successfully ? if (processInstance.getState() == ProcessInstance.STATE_COMPLETED) { System.out.printf("\nBusiness process [%s] successfully completed after restart\n", processInstance.getProcessId()); } } } } else { System.out.println("***** WARNING: No session found for session-id " + sessionId); } This is not working and I get the following exception: Hibernate: select sessioninf0_.id as id1_0_, sessioninf0_.lastModificationDate as lastModi2_1_0_, sessioninf0_.rulesByteArray as rulesByt3_1_0_, sessioninf0_.startDate as startDate1_0_, sessioninf0_.OPTLOCK as OPTLOCK1_0_ from SessionInfo s essioninf0_ where sessioninf0_.id=? 0 11/06 20:43:55,210[main] ERROR drools.persistence.SingleSessionCommandService.rollbackTransaction - Could not commit session java.lang.NullPointerException at org.jbpm.persistence.processinstance.JPAProcessInstanceManager.getProcessInstances(JPAProcessInstanceManager.java:97) at org.jbpm.process.instance.ProcessRuntimeImpl.getProcessInstances(ProcessRuntimeImpl.java:200) at org.drools.common.AbstractWorkingMemory.getProcessInstances(AbstractWorkingMemory.java:1093) at org.drools.impl.StatefulKnowledgeSessionImpl.getProcessInstances(StatefulKnowledgeSessionImpl.java:292) at org.drools.command.runtime.process.GetProcessInstancesCommand.execute(GetProcessInstancesCommand.java:35) at org.drools.command.runtime.process.GetProcessInstancesCommand.execute(GetProcessInstancesCommand.java:28) at org.drools.command.impl.DefaultCommandService.execute(DefaultCommandService.java:36) at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:345) at org.drools.command.impl.CommandBasedStatefulKnowledgeSession.getProcessInstances(CommandBasedStatefulKnowledgeSession.java:139) Any ideas ? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/741104#741104] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034]
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