code: @Deployment public void testUpdateJPAEntityValues(){
    setupJPAEntityToUpdate();
    Map<String,Object> variables=new HashMap<String,Object>();
    variables.put("entityToUpdate",entityToUpdate);
    ProcessInstance processInstance=runtimeService.startProcessInstanceByKey("UpdateJPAValuesProcess",variables);
    Object updatedEntity=runtimeService.getVariable(processInstance.getId(),"entityToUpdate");
    assertTrue(updatedEntity instanceof FieldAccessJPAEntity);
    assertEquals("updatedValue",((FieldAccessJPAEntity)updatedEntity).getValue());
  }
  