[jboss-jira] [JBoss JIRA] Issue Comment Edited: (JBRULES-2837) StatefulKnowledgeSession.startProcess not thread-safe

StatefulKnowledgeSession.startProcess not thread-safe ----------------------------------------------------- Key: JBRULES-2837 URL: https://issues.jboss.org/browse/JBRULES-2837 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Components: drools-core Affects Versions: 5.1.1.FINAL Reporter: Maxence Dewil Assignee: Mark Proctor See http://drools-java-rules-engine.46999.n3.nabble.com/StatefulKnowledgeSess... and http://drools-java-rules-engine.46999.n3.nabble.com/Weird-Problem-WorkIte... The documentation lets believe that the StatefulKnowledgeSession can be used in a multithreaded environment (https://hudson.jboss.org/hudson/job/jBPM5/lastSuccessfulBuild/artifact/ta...). But the classes org.drools.process.instance.impl.DefaultProcessInstanceManager and org.drools.process.instance.impl.DefaultWorkItemManager are not synchronized. Consequences: process instance ids and workitem ids not unique.