code: @Override
      public OverloadMessage createOLM() {
          OverloadMessage msg = new OverloadMessageImpl(_OLM_HOLDER.mandatoryCodes, _OLM_HOLDER.mandatoryVariableCodes,
                  _OLM_HOLDER.optionalCodes, _OLM_HOLDER.mandatoryCodeToIndex, _OLM_HOLDER.mandatoryVariableCodeToIndex,
                  _OLM_HOLDER.optionalCodeToIndex);
          return msg;
      }
docs: /*
  (non-Javadoc)
  
  @see org.restcomm.protocols.ss7.isup.ISUPMessageFactory#createOLM()