Defining a swimlane in a processdefinition with an assignment that is not using a delegation class leads to incorrect WARN messages in the logs at process deploy time:

<swimlane name="test">
<assignment actor-id="admin" />
</swimlane>

WARN [JpdlXmlReader] process xml warning: swimlane 'test' does not have an assignment
WARN [JpdlXmlReader] process parse warning: swimlane 'test' does not have an assignment