Have such case:

in one task-node I create few tasks for different actors (every one of them has to accept processed document). This is done in node-enter event when entering this task-node.

I would like to cancel all pending tasks in this node when first of those actors rejects (takes "reject" transition). How to do this?

When I write handler for task-end event that iterates through pending tasks and calls "cancel" method I get exception that the token is locked...

simplified example of this proces:

<process-definition xmlns="urn:jbpm.org:jpdl-3.2" name="Proces">

<start-state name="start">
 <transition to="accept" name="send"/>
</start-state>

<task-node name="accept" create-tasks="false" signal="last-wait">
 <event type="node-enter">
 <action name="create tasks" class="xxx.CreateAcceptTasks">
 <actorIds>actor1,actor2,actor3,actor4</actorIds>
 </action>
 </event>
 <event type="task-end">
 <action name="is positive?" class="xxx.AcceptTaskEnd">
 </action>
 </event>
 <task name="accept"></task>
 <transition to="accepted" name="accept"></transition>
 <transition to="rejected" name="reject"></transition>
</task-node>

...

</process-definition>

xxx.CreateAcceptTasks

just creates TaskInstances of "accept" Task and assignes them to actors provided in param.

xxx.AcceptTaskEnd

???
when I tried to fetch pending tasks with executionContext.getTaskMgmtInstance().getTaskInstances()

and then call "cancel" on every pending tasks (that is not equal to current task of course) - I get "Token locked" exception...

Any help would be appreciate...