null pointer when create new sub process definition --------------------------------------------------- Key: JBPM-895 URL: http://jira.jboss.com/jira/browse/JBPM-895 Project: JBoss jBPM Issue Type: Bug Components: BPEL Affects Versions: jBPM 3.1.3 Reporter: Tom Nguyen Assigned To: Tom Baeyens Attachments: DbSubProcessResolver.java I have a problem with my process composition Exception happen when deploying process with sub process: public void deployProcessDefinition() { ProcessDefinition processDefinition = ProcessDefinition.parseXmlResource("main/processdefinition.xml"); ProcessInstance instance = new ProcessInstance(processDefinition); JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext(); try { jbpmContext.deployProcessDefinition(processDefinition); } finally { jbpmContext.close(); } } java.lang.NullPointerException: can't create a process instance when processDefinition is null at org.jbpm.graph.exe.ProcessInstance.<init>(ProcessInstance.java:87) at org.jbpm.graph.exe.Token.createSubProcessInstance(Token.java:571) at org.jbpm.graph.node.ProcessState.execute(ProcessState.java:109) at org.jbpm.graph.def.Node.enter(Node.java:316) <?xml version="1.0" encoding="UTF-8"?> <process-definition xmlns="urn:jbpm.org:jpdl-3.1" name="main"> <start-state name="start"> </start-state> <end-state name="end"></end-state> <process-state name="sub"> <sub-process name="sub"/> </process-state> </process-definition> This is my sub process: <?xml version="1.0" encoding="UTF-8"?> <process-definition xmlns="urn:jbpm.org:jpdl-3.1" name="sub"> <start-state name="start"> </start-state> <end-state name="end"></end-state> </process-definition>