public static XField findXField(FieldInstruction fins, ConstantPoolGen cpg)
public static XField findXField(String className, String fieldName, String fieldSig)
	public static XField findXField(FieldInstruction fins, ConstantPoolGen cpg)		throws ClassNotFoundException {		String className = fins.getClassName(cpg);		String fieldName = fins.getFieldName(cpg);		String fieldSig = fins.getSignature(cpg);		XField xfield = findXField(className, fieldName, fieldSig);		short opcode = fins.getOpcode();		if (xfield != null &&			xfield.isStatic() == (opcode == Constants.GETSTATIC || opcode == Constants.PUTSTATIC))			return xfield;		else			return null;	}