docs: public static String convertClassName(String className, String stringToInsert, int location)
     {
         int startSeq = 0;
         if (location >= 0)
         {
             for (int i = 0; i < location; i++)
             {
                 startSeq = className.indexOf('.', startSeq + 1);
             }
         }
         else
         {
             startSeq = className.length();
             for (int i = location; i < 0; i++)
             {
                 startSeq = className.lastIndexOf('.', startSeq - 1);
             }
         }
         if (startSeq == -1)
             return null;
         int domainSeq = startSeq;
         if (className.indexOf(Constant.THIN_SUBPACKAGE, startSeq) == startSeq + 1)
             startSeq = startSeq + Constant.THIN_SUBPACKAGE.length();
         className = className.substring(0, domainSeq + 1) + stringToInsert + className.substring(startSeq + 1);
         return className;
     }