}
	return lockedOpenFile(path, flag, perm, lockType)
}

// fixLongPath returns the extended-length (\\?\-prefixed) form of
// path when needed, in order to avoid the default 260 character file
// path limit imposed by Windows. If path is not easily converted to
// the extended-length form (for example, if path is a relative path
// or contains .. elements), or is short enough, fixLongPath returns

     *
     * @param results
     */
    public static <T> Result<Iterable<T>> newResultSet(Iterable<? extends Result<? extends T>> results) {
        boolean hasErrors = false;
        List<T> modelsList = new ArrayList<>();
        List<ModelProblem> problemsList = new ArrayList<>();

        for (Result<? extends T> result : results) {
            modelsList.add(result.get());

   *
   * @since NEXT
   */
  public static <T extends @Nullable Object, K extends Comparable<? super K>, V>
      Collector<T, ?, ImmutableSortedMap<K, V>> toImmutableSortedMap(
          Function<? super T, ? extends K> keyFunction,
          Function<? super T, ? extends V> valueFunction) {
    return CollectCollectors.toImmutableSortedMap(Ordering.natural(), keyFunction, valueFunction);

 * @author George van den Driessche
 */
@GwtIncompatible
public abstract class PerCollectionSizeTestSuiteBuilder<
        B extends PerCollectionSizeTestSuiteBuilder<B, G, T, E>,
        G extends TestContainerGenerator<T, E>,
        T,
        E>
    extends FeatureSpecificTestSuiteBuilder<B, G> {
  private static final Logger logger =
      Logger.getLogger(PerCollectionSizeTestSuiteBuilder.class.getName());

   */
  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
  public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> create(
      Multimap<? extends K, ? extends V> multimap) {
    return new TreeMultimap<>(Ordering.natural(), Ordering.natural(), multimap);
  }

- Use `OptionalEntity<T>` for nullable returns
- Plain classes (no extends/implements)

### Helper
- Stateless utility classes
- Access via `ComponentUtil.getXyzHelper()`
- Named with "Helper" suffix

### DBFlute Generated Code
```
opensearch/{index}/
├── bsentity/, bsbhv/    # Base classes (DO NOT EDIT)
├── exentity/, exbhv/    # Extended classes (customize here)

    }

    protected <ENTITY extends BadWord> ENTITY doSelectByPK(String id, Class<? extends ENTITY> tp) {
        return doSelectEntity(xprepareCBAsPK(id), tp);
    }

    protected BadWordCB xprepareCBAsPK(String id) {
        assertObjectNotNull("id", id);
        return newConditionBean().acceptPK(id);
    }

    }

    protected <ENTITY extends BoostDocumentRule> ENTITY doSelectByPK(String id, Class<? extends ENTITY> tp) {
        return doSelectEntity(xprepareCBAsPK(id), tp);
    }

    protected BoostDocumentRuleCB xprepareCBAsPK(String id) {
        assertObjectNotNull("id", id);
        return newConditionBean().acceptPK(id);
    }

    }

    protected <ENTITY extends DuplicateHost> ENTITY doSelectByPK(String id, Class<? extends ENTITY> tp) {
        return doSelectEntity(xprepareCBAsPK(id), tp);
    }

    protected DuplicateHostCB xprepareCBAsPK(String id) {
        assertObjectNotNull("id", id);
        return newConditionBean().acceptPK(id);
    }

    }

    protected <ENTITY extends JobLog> ENTITY doSelectByPK(String id, Class<? extends ENTITY> tp) {
        return doSelectEntity(xprepareCBAsPK(id), tp);
    }

    protected JobLogCB xprepareCBAsPK(String id) {
        assertObjectNotNull("id", id);
        return newConditionBean().acceptPK(id);
    }