docs: private String checkProperty(String propName) throws AttributeNotSupportedException {
          final String METHODNAME = "checkProperty";
          boolean inRepos = false;
          boolean inLA = false;
          if (propName.equals(xsiType)) {
  /*
   * if (trcLogger.isLoggable(Level.FINER)) {
   * trcLogger.exiting(CLASSNAME, METHODNAME, " " + propName
   * + " is defined in Repository " + repos);
   * }
   */ return repos;
          }
          inRepos = false;
          for (int i = 0; i < entityTypes.size() && !inRepos; i++) {
              inRepos = _metaDataMapper.isPropertyInRepository(propName,
                                                               entityTypes.get(i));
          }
          if (!inRepos) {
              for (int i = 0; i < entityTypes.size(); i++) {
                  inLA = _metaDataMapper.isPropertyInLookAside(propName,
                                                               entityTypes.get(i));
              }
          } else {
  /*
   * if (trcLogger.isLoggable(Level.FINER)) {
   * trcLogger.exiting(CLASSNAME, METHODNAME, "Property " + propName
   * + " is defined in Repository " + repos);
   * }
   */ return repos;
          }
          if (!inRepos && !inLA) {
              throw new AttributeNotSupportedException(WIMMessageKey.ATTRIBUTE_NOT_SUPPORTED, WIMMessageKey.ATTRIBUTE_NOT_SUPPORTED);
          }
  /*
   * if (trcLogger.isLoggable(Level.FINER)) {
   * trcLogger.exiting(CLASSNAME, METHODNAME, "Property " + propName
   * + " is defined in Repository " + la);
   * }
   */ return la;
      }