code: public TaskServiceResponse abortTaskSet(Nexus nexus)
     {
        try
        {
           this.taskSet.abort(nexus);
           return TaskServiceResponse.FUNCTION_COMPLETE;
        }
        catch (InterruptedException e)
        {
           return TaskServiceResponse.SERVICE_DELIVERY_OR_TARGET_FAILURE;
        }
        catch (IllegalArgumentException e)
        {
           throw e;
        }
     }
docs: is simply attempting to remove a task from the scheduler