if (bytecodeSet == null) return false;
	public boolean prescreen(Method method, ClassContext classContext) {		BitSet bytecodeSet = classContext.getBytecodeSet(method);		// The pattern requires a get/put pair accessing the same field.		if (!(bytecodeSet.get(Constants.GETSTATIC) && bytecodeSet.get(Constants.PUTSTATIC)) &&		        !(bytecodeSet.get(Constants.GETFIELD) && bytecodeSet.get(Constants.PUTFIELD)))			return false;		// If the method is synchronized, then we'll assume that		// things are properly synchronized		if (method.isSynchronized())			return false;		return true;	}