private Set<String> findEnumValuesForOneAnyOf(List<ResolvedClassType> objects, String determinantField) {
    Set<String> result = new TreeSet<>();
    for (ResolvedClassType obj : objects) {
      String value = getConstString(obj.node.get("properties").get(determinantField));
      if (value == null) {
        ruleFactory.getLogger().error("No value for oneAnyOf: " + determinantField);
        throw new NullPointerException();
      }
      if (!result.add(value)) {
        ruleFactory.getLogger().error("Duplicated value for oneAnyOf: " + value);
        throw new IllegalStateException("Duplicated value for oneAnyOf: " + value);
      }
    }
    return result;
  }
private Set<String> findEnumValuesForOneAnyOf(List<ResolvedClassType> objects, String determinantField)