[jbpm-users] Jbpm 5.3.0.Final with Spring 3.1.3.RELEASE

Hi! I'm very new with Jbpm 5 and I have some issues with the spring @Autowired functionality. I'have a .bpmn workflow with a Gateway. In my gateway I have a constraint calling a java service of my own. In this java service I have @Autowired fields. My problem is that when I execute my workflow, I got a NullPointerException because the injection didn't worked. Do you have any idea on how to make this work? Thank you