[jboss-user] [JBoss jBPM] - problems creating task instances

[sgrassie]

Hi,

I'm having a problem creating task instances, specifically for the 1st task node in the fairly simple workflow I've created. I can create the first task ok, and I can end it, and save the instance. 
However upon creating the context again and reloading the process instance, things go badly - I can't create a task instance from there.

Here is a JUnit4 test case that illustrates what I am trying to do, and the processdefinition.xml is below. If anyone can point out what I'm doing wrong or point me in the right direction, I'd be most grateful.


  | @Test
  | 	public void nativeTaskInstanceCommits() {
  | 		File f = TestFiles.getFile("SimpleWorkflow");
  | 		JbpmContext context = JbpmConfiguration.getInstance().createJbpmContext();
  | 		
  | 		try {
  | 			jbpmContext.setActorId("user");
  | 			ProcessDefinition processDefinition = ProcessDefinition.parseXmlReader(new FileReader(f));
  | 			context.deployProcessDefinition(processDefinition);
  | 			
  | 			ProcessInstance processInstance = new ProcessInstance(processDefinition);
  | 			context.save(processInstance);
  | 			
  | 			TaskInstance taskInstance = processInstance.getTaskMgmtInstance().createStartTaskInstance();
  | 			Long id = processInstance.getId();
  | 			Assert.assertTrue("startTask".equals(taskInstance.getName()));
  | 			taskInstance.end();
  | 			context.save(taskInstance);
  | 			context.close();
  | 			
  | 			context = JbpmConfiguration.getInstance().createJbpmContext();
  | 			
  | 			//this doesn't seem to work for me
  | 			processInstance = context.loadProcessInstanceForUpdate(id);
  | 			taskInstance = processInstance.getTaskMgmtInstance().createTaskInstance();
  | 			Assert.assertTrue("firstTask".equals(taskInstance.getName()));
  | 			
  | 			List<?> list = taskInstance.getToken().getNode().getLeavingTransitions();
  | 			
  | 			for(Object o : list) {
  | 				Transition trans = (Transition)o;
  | 				String name = trans.getName();
  | 				Assert.assertTrue( (name.equals("finish")) || (name.equals("to taskNode2")) );
  | 			}
  | 			
  | 			taskInstance.end("finish");
  | 			Assert.assertTrue("end".equals(taskInstance.getToken().getNode().getName()));
  | 			
  | 		} catch (RuntimeException e) {
  | 			Assert.fail(e.getMessage());
  | 		}
  | 		catch (Exception e) {
  | 			Assert.fail(e.getMessage());
  | 		}
  | 	}
  | 

  | <?xml version="1.0" encoding="UTF-8"?>
  | 
  | <process-definition  xmlns=""  name="SimpleWorkflow">
  | 
  | 
  | 	<swimlane name="swimlane1">
  | 		<assignment expression="user(test)"></assignment>
  | 	</swimlane>
  | 
  | 
  | 	<start-state name="start">
  | 		<task name="startTask" swimlane="swimlane1">
  | 			<description>
  | 				The start node's Task
  | 			</description>
  | 		</task>
  | 		<transition to="taskNode1" name="starting transition"></transition>
  | 	</start-state>
  | 
  | 
  | 	<task-node name="taskNode1">
  | 		<task swimlane="swimlane1" name="firstTask">
  | 			<description>
  | 				The first task in the workflow
  | 			</description>
  | 		</task>
  | 		<transition to="taskNode2" name="to taskNode2"></transition>
  | 		<transition to="end" name="finish"></transition>
  | 	</task-node>
  | 
  | 	<task-node name="taskNode2">
  | 		<task name="secondTask" swimlane="swimlane1">
  | 			<description>
  | 				The second task in the workflow
  | 			</description>
  | 		</task>
  | 		<transition to="end" name="to end"></transition>
  | 	</task-node>
  | 
  | 
  | 	<end-state name="end"></end-state>
  | 
  | 
  | </process-definition>
  | 

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