public void start(JobLeaderIdActions initialJobLeaderIdActions) throws Exception {
		if (isStarted()) {
			clear();
		}

		this.jobLeaderIdActions = Preconditions.checkNotNull(initialJobLeaderIdActions);
	}
public void start ( JobLeaderIdActions initialJobLeaderIdActions ) throws Exception { if ( isStarted ( ) ) { clear ( ) ; } this . jobLeaderIdActions = Preconditions . checkNotNull ( initialJobLeaderIdActions ) ; }
Start the service with the given job leader actions.

@param initialJobLeaderIdActions to use for job leader id actions
@throws Exception which is thrown when clearing up old state