private void attemptMatch(BasicBlock basicBlock, BasicBlock.InstructionIterator instructionIterator) {
private void attemptMatch(BasicBlock basicBlock, BasicBlock.InstructionIterator instructionIterator) throws DataflowAnalysisException {
	private void attemptMatch(BasicBlock basicBlock, BasicBlock.InstructionIterator instructionIterator) {		work(basicBlock, instructionIterator, pattern.getFirst(), 0, null, null);	}