[jboss-user] [JBoss jBPM] - Remove variable not removing

[ziglee]

I have this code:
Map<String,Object> variables = new HashMap<String,Object>();
  | variables.put("busLine", busLine);
  | executionService.startProcessInstanceByKey("helloWorld", variables);
and I have an org.jbpm.api.listener.EventListener with this code:
public void notify(EventListenerExecution execution) {
  |    boolean removed = execution.removeVariable("busLine");
  | }
with this process definition:
<process name="helloWorld" xmlns="http://jbpm.org/4.0/jpdl">
  | 	<start g="16,22,80,40">
  | 		<transition to="printHelloWorld" />
  | 	</start>
  | 
  | 	<java expr="#{busLineService}" g="166,24,138,40" method="save2"
  | 		name="printHelloWorld">
  | 		<arg>
  | 			<object expr="#{busLine}" />
  | 		</arg>
  | 		<on event="end">
  | 			<event-listener class="br.com.acttive.wicketjbpm.workflow.WorkflowListener">
  | 			</event-listener>
  | 		</on>
  | 		<transition name="to state1" to="state1" g="-49,-18" />
  | 	</java>
  | 
  | 	<state name="state1" g="287,158,92,52">
  | 		<transition name="to end1" to="end1" g="-42,-18" />
  | 	</state>
  | 	
  | 	<end g="422,18,48,48" name="end1" />
  | </process>
where busLine is an entity synchronized with hibernate and I'm not beeing able to remove this variable from the jbpm4_variable table.

Anyone knows why this happens?

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