ValueType value = getArgument(invokeInstruction, cpg, i);
ValueType value = getArgument(invokeInstruction, cpg, i, numArguments);
	public BitSet getArgumentSet(			InvokeInstruction invokeInstruction,			ConstantPoolGen cpg,			DataflowValueChooser<ValueType> chooser) throws DataflowAnalysisException {		BitSet chosenArgSet = new BitSet();		int numArguments = getNumArguments(invokeInstruction, cpg);		for (int i = 0; i < numArguments; ++i) {			ValueType value = getArgument(invokeInstruction, cpg, i);			if (chooser.choose(value))				chosenArgSet.set(i);		}			return chosenArgSet;	}