docs: public Converter getConverterToPass(int iIndex)
      {
          if (iIndex == -1)
              return super.getNextConverter();
          if (m_vconvDependent != null)
          {
              if (iIndex < m_vconvDependent.size())
                  return (Converter)m_vconvDependent.get(iIndex);
          }
          return null;        // Use the next converter on the chain
      }