[jboss-user] [JBoss jBPM] - Help:type of nodes returned by root.getNode() is unnarrowed

[gmournos]

I have created a custom node type and I need to cast to it during the workflow execution. 
However, when I cast the result of calling token.getNode() to my custom type, I get a ClassCastException, although the token is at my custom node at the time.

My code is complicated so I created a simple test case, and added it to the already existing GraphSessionDbTest.java (basically I just added three assertions to the existing test case).
The test case breaks, in the third assertion. The node has name 's' but it is not an instance of StartState...

 
  | // added to jbpm-3.1/src/java.jbpm.test/org/jbpm/db/GraphSessionDbTest.java
  | 
  |   public void testUpdateProcessInstance2() {
  |     ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
  |       "<process-definition>" +
  |       "  <start-state name='s' />" +
  |       "  <node name='n' />" +
  |       "</process-definition>");
  | 
  |     processDefinition = saveAndReload(processDefinition);
  | 
  |     ProcessInstance processInstance = new ProcessInstance(processDefinition);
  | 
  |     processInstance = saveAndReload(processInstance);
  |     long pid = processInstance.getId();
  | 
  |     //this is the actual part added to the already existing testUpdateProcessInstance() case
  |     assertNotNull(processInstance.getRootToken().getNode());
  |     assertTrue(processInstance.getRootToken().getNode() instanceof Node);
  |     assertTrue(processInstance.getRootToken().getNode() instanceof StartState);
  | 
  |     assertEquals("s", processInstance.getRootToken().getNode().getName());
  |     processInstance.getRootToken().setNode(processInstance.getProcessDefinition().getNode("n"));
  |     
  |     processInstance = saveAndReload(processInstance);
  |     assertEquals("n", processInstance.getRootToken().getNode().getName());
  |     assertEquals(pid, processInstance.getId());
  |   }
  | 
  | 

Is this normal?
I am not a hibernate expert. 
In my normal code (not when I am running the simple test case), during the execution of signal() I get hibernate warnings of the type:

14:01:34,429 [main] WARN  StatefulPersistenceContext : Narrowing proxy to class org.jbpm.graph.node.StartState - this operation breaks ==
  | 
 
Are these relevant?




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