question: @ Override public synchronized void maybeStartTrackingJob ( JobStatus job ) { if ( job . hasTimingDelayConstraint ( ) || job . hasDeadlineConstraint ( ) ) { maybeStopTrackingJob ( job ) ; ListIterator < JobStatus > it = mTrackedJobs . listIterator ( mTrackedJobs . size ( ) ) ; while ( it . hasPrevious ( ) ) { JobStatus ts = it . previous ( ) ; if ( ts . getLatestRunTimeElapsed ( ) < job . getLatestRunTimeElapsed ( ) ) { break ; } } it . add ( job ) ; maybeUpdateAlarms ( job . hasTimingDelayConstraint ( ) ? job . getEarliestRunTime ( ) : Long . MAX_VALUE , job . hasDeadlineConstraint ( ) ? job . getLatestRunTimeElapsed ( ) : Long . MAX_VALUE ) ; } }
target:  Check if the job has a timing constraint, and if so determine where to insert it in our list.