[jboss-user] [JBoss jBPM] - Process-state: can't create a process instance when processD

I'm trying a very simple example of sub-processes up and running with the following definitions: | <process-definition xmlns="urn:jbpm.org:jpdl-3.1" name="sub"> | <start-state name="start"> | <transition name="" to="node"></transition> | </start-state> | <node name="node"> | <transition name="" to="wait-state"></transition> | </node> | <end-state name="end"></end-state> | <state name="wait-state"> | <transition name="" to="end"></transition> | </state> | </process-definition> | | <process-definition xmlns="urn:jbpm.org:jpdl-3.1" name="caller"> | <start-state name="start"> | <transition name="" to="node"></transition> | </start-state> | <end-state name="end"></end-state> | <node name="node"> | <transition name="" to="call sub"></transition> | </node> | <process-state name="call sub"> | <sub-process name="sub"/> | <transition name="" to="end"></transition> | </process-state> | </process-definition> | Excerpted from my unit test code: | context = _jbpmConfiguration.createJbpmContext(); | | FileInputStream fis_sub = new FileInputStream("processes/sub/processdefinition.xml"); | FileInputStream fis_caller = new FileInputStream("processes/caller/processdefinition.xml"); | | ProcessDefinition pdload_sub = ProcessDefinition.parseXmlInputStream(fis_sub); | ProcessDefinition pdload_caller = ProcessDefinition.parseXmlInputStream(fis_caller); | | context.deployProcessDefinition(pdload_sub); | context.deployProcessDefinition(pdload_caller); | | GraphSession gs_caller = context.getGraphSession(); | | // don't think I necessarily need to reload the process definitions | // from the session but it doesn't make a difference | ProcessDefinition pd_sub = gs_caller.findLatestProcessDefinition("sub"); | ProcessDefinition pd_caller = gs_caller.findLatestProcessDefinition("caller"); | | ProcessInstance inst = new ProcessInstance(pd_caller); | | // begin | Token token = inst.getRootToken(); | ContextInstance contextInst = (ContextInstance) inst.getInstance(ContextInstance.class); | | System.out.println("getNode().getName(): " + token.getNode().getName()); | | token.signal(); | System.out.println("getNode().getName(): " + token.getNode().getName()); | } | finally | { | context.close(); | } | The process runs successfully until it tries to invoke the sub-process (when I signal the calling process) at which point I get the NullPointerException I'm sure it's something very simple - any thoughts? Thanks, Andy View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981392#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...