/* goodG2B() - use goodsource and badsink */
        private void GoodG2B()
        {
            StringBuilder data;

            /* FIX: hardcode data to non-null */
            data = new StringBuilder();
            CWE476_NULL_Pointer_Dereference__StringBuilder_51b.GoodG2BSink(data);
        }
        /* goodB2G() - use badsource and goodsink */
        private void GoodB2G()
        {
            StringBuilder data;

            /* POTENTIAL FLAW: data is null */
            data = null;
            CWE476_NULL_Pointer_Dereference__StringBuilder_51b.GoodB2GSink(data);
        }
        public override void Bad()
        {
            StringBuilder data;

            /* POTENTIAL FLAW: data is null */
            data = null;
            CWE476_NULL_Pointer_Dereference__StringBuilder_51b.BadSink(data);
        }