code: public LoopbackAckMessage createLPA() {
  
          LoopbackAckMessage msg = new LoopbackAckMessageImpl(_LPA_HOLDER.mandatoryCodes, _LPA_HOLDER.mandatoryVariableCodes,
                  _LPA_HOLDER.optionalCodes, _LPA_HOLDER.mandatoryCodeToIndex, _LPA_HOLDER.mandatoryVariableCodeToIndex,
                  _LPA_HOLDER.optionalCodeToIndex);
  
          return msg;
      }
docs: /*
  (non-Javadoc)
  
  @see org.restcomm.protocols.ss7.isup.ISUPMessageFactory#createLPA(int cic)