docs: private void buildSymbolsMap()
      {
          int sid = myFirstLocalSid;
          for (int i = 0; i < mySymbolNames.length; i++, sid++)
          {
              String symbolText = mySymbolNames[i];
              if (symbolText != null)
              {
                  putToMapIfNotThere(mySymbolsMap, symbolText, sid);
              }
          }
      }