@Override
 public <F extends OFValueType<F>> F get(MatchField<F> field)
     throws UnsupportedOperationException {
   OFOxm<F> value = getOxm(field);
   if (value == null) return null;
   return value.getValue();
 }
 @Override
 public <F extends OFValueType<F>> Masked<F> getMasked(MatchField<F> field)
     throws UnsupportedOperationException {
   OFOxm<F> value = getOxm(field);
   if (value == null || !value.isMasked()) return null;
   // TODO: If changing OXMs to extend Masked, then use it here
   return Masked.of(value.getValue(), value.getMask());
 }
  @Override
  public <F extends OFValueType<F>> F get(MatchField<F> field)
      throws UnsupportedOperationException {
    if (!supports(field))
      throw new UnsupportedOperationException(
          "OFMatchV3Ver14 does not support matching on field " + field.getName());

    OFOxm<F> oxm = this.oxmList.get(field);

    if (oxm == null || !field.arePrerequisitesOK(this)) return null;

    return oxm.getValue();
  }
  @Override
  public <F extends OFValueType<F>> Masked<F> getMasked(MatchField<F> field)
      throws UnsupportedOperationException {
    if (!supportsMasked(field))
      throw new UnsupportedOperationException(
          "OFMatchV3Ver14 does not support masked matching on field " + field.getName());

    OFOxm<F> oxm = this.oxmList.get(field);

    if (oxm == null || !field.arePrerequisitesOK(this)) return null;

    if (oxm.getMask() == null) return null;

    // TODO: Make OfOxm extend Masked and just return the OXM?
    return Masked.of(oxm.getValue(), oxm.getMask());
  }