NPE in Transition.fireSuperStateEnterEvents() when destination is null

The current method body is shown below. Destination is null in my case (I should check my process definition, it came about from a bad database move) However, instead of getting the JbpmException shown, I get the NPE from the "destination.isSuperStateNode()" loop above.

I'm not entirely sure what that loop is for, which is why I've not included a patch here. I'm unsure whether it should be moved down just past the first null check, or to the very bottom. Sorry

Source in question...

Node fireSuperStateEnterEvents(ExecutionContext executionContext) {
// calculate the actual destinationNode node
Node destination = to;
while (destination.isSuperStateNode())

{ ###KJP This explodes before it gets to the Null check 3 lines down. destination = (Node) destination.getNodes().get(0); }

if (destination==null)

{ String transitionName = (name!=null ? "'"+name+"'" : "in node '"+from+"'"); throw new JbpmException("transition "+transitionName+" doesn't have destination. check your processdefinition.xml"); }

// performance optimisation: check if at least there is a candidate superstate to be entered.
if ( destination.getSuperState()!=null )

{ // collect all the superstates being left List leavingSuperStates = collectAllSuperStates(destination, from); // reverse the order so that events are fired from outer to inner superstates Collections.reverse(leavingSuperStates); // fire a superstate-enter event for all superstates being left fireSuperStateEvents(leavingSuperStates, Event.EVENTTYPE_SUPERSTATE_ENTER, executionContext); }

return destination;
}