Shashwat Gaur [http://community.jboss.org/people/shashwat123] replied to the discussion "Setting superProcessToken results in to error :ERROR [STDERR] org.jbpm.JbpmException: couldn't signal without specifying a leaving transition : transition is null" To view the discussion, visit: http://community.jboss.org/message/547976#547976 -------------------------------------------------------------- Thanks Alejandro for your prompt reply. Yes you are correct that subprocess instance automatically sets the superprocess token. In my case if either I set the superprocess token or i use the 'createSubProcessInstance' to create the subprocess which automatically sets the super process token i get this error. Please have a look at the following code snippet, I am using in my work flow: public void execute(ExecutionContext executionContext) throws Exception {             processName = getProcessName();                                            ProcessDefinition processDefinition = ManagedJbpmContext.instance().getGraphSession().findLatestProcessDefinition(processName);             ProcessInstance pi = executionContext.getToken().createSubProcessInstance(processDefinition);           Task task = ProcessUtil.getStartTask(pi.getProcessDefinition());             Map<String, Object> values = extractCallerData(executionContext,                     task);             TaskInstance ti = ProcessUtil.initializeProcess(pi, task, values,                     false);             if (ti != null) {                 // setup the swimlane instance                 Swimlane s = ti.getTask().getSwimlane();                 if (s != null) {                     String assignment = s.getPooledActorsExpression();                     if (!Strings.isEmpty(assignment)) {                         ti.getSwimlaneInstance().setPooledActors(                                 assignment.split(","));                     }                     ti.end();                 }             } } -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/547976#547976] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]