i modifed the websale process as follow ,and deploy successfully ,but when i start the process ,all the AssignmentHandlers seems haven't been invoked , the actorid in swimlaneInstance table and in taskinstance table are all "null".what's the problem?
<?xml version="1.0" encoding="UTF-8"?>
<process-definition name="websale2006">
<!-- SWIMLANES (= process roles) -->
<!-- NODES -->
<start-state name="create new web sale order">
</start-state>
<task-node name="evaluate web order">
salesman
</task-node>
<task-node name="fix web order data">
</task-node>
<task-node name="wait for money">
</task-node>
accountancy application is now informed of the payment
shipper
${shipper} now ships ${item} to ${address}
<end-state name="end" />
</process-definition>
