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