Tom, you can get it with following onExit definition, with assumption that you are looking for ActorId, similar you can get group assignment as well (GroupId):
<extensionElements> <tns:onExit-script scriptFormat="http://www.java.com/java"> <script> System.out.println("User of the task " + ((org.jbpm.workflow.instance.node.WorkItemNodeInstance)kcontext.getNodeInstance()).getWorkItem().getParameter("ActorId")); </script> </tns:onExit-script> </extensionElements>
This worked perfectly, thanks. Note that "ActorId" needs to be quoted in the code above. The quotes were probably removed by the forum software.