this.retValPopList = new LinkedList<Integer>();
	public MethodReturnCheck(BugReporter bugReporter) {		this.bugReporter = bugReporter;		this.branchTargetSet = new BitSet();		this.queuedWarningList = new LinkedList<QueuedWarning>();		if (COUNT_POP_BRANCH_TARGETS) {			this.popList = new LinkedList<Integer>();		}	}