*/
    public static final String PATH_SEPARATOR = System.getProperty("path.separator");

    /**
     * <code>os.name</code> システムプロパティ。例:<code>Mac OS X</code>
     */
    public static final String OS_NAME = System.getProperty("os.name");

    /**
     * <code>java.io.tmpdir</code> システムプロパティ。例：/tmp
     */
    public static final String JAVA_IO_TMPDIR = System.getProperty("java.io.tmpdir");

    /**

    }

    /**
     * クラスローダ<code>other</code>がクラスローダ<code>cl</code>の祖先なら<code>true</code>
     * を返します。
     *
     * @param cl
     *            クラスローダ
     * @param other
     *            クラスローダ
     * @return クラスローダ<code>other</code>がクラスローダ<code>cl</code>の祖先なら
     *         <code>true</code>
     */

     * @return the parsed version constraint, never {@code null}
     * @throws VersionParserException if the range specification violates the syntax rules of this scheme
     */
    @Nonnull
    VersionConstraint parseVersionConstraint(@Nonnull String constraint);

    /**
     * Checks whether a given artifact version is considered a {@code SNAPSHOT} or not.
     */

     */
    Map<String, String> getUserProperties();

    /**
     * Gets the base directory of the current project (if any).
     *
     * @return The base directory of the current project or {@code null} if none.
     */
    Path getProjectDirectory();

    /**
     * Gets current calculated project properties
     *
     * @return The project properties, never {@code null}.
     */

    /**
     * Returns {@link Artifact} instance where to relocate to, or {@code null}.
     *
     * @param session The session, never {@code null}.
     * @param result The artifact descriptor result, never {@code null}.
     * @param model The artifact model, never {@code null}.
     * @return The {@link Artifact} to relocate to, or {@code null} if no relocation wanted.
     */

   * @throws IllegalArgumentException if {@code distinctElements} is negative
   */
  public static <E extends @Nullable Object> HashMultiset<E> create(int distinctElements) {
    return new HashMultiset<>(distinctElements);
  }

  /**
   * Creates a new {@code HashMultiset} containing the specified elements.
   *
   * <p>This implementation is highly efficient when {@code elements} is itself a {@link Multiset}.
   *

 *
 * @since 4.0.0
 */
@Experimental
public interface TypeRegistry extends ExtensibleEnumRegistry<Type> {

    /**
     * Obtain the {@link Type} from the specified {@code id}.
     * If no type is known for {@code id}, the registry will
     * create a custom {@code Type} for it.
     *
     * @param id the id of the type to retrieve
     * @return the type
     */
    @Nonnull
    @Override

        if (resourceBundle == null) {
            return null;
        }

        final int length = messageCode.length();
        if (length > CODE_NUMBER_LENGTH) {
            final String key = messageCode.charAt(0) + messageCode.substring(length - CODE_NUMBER_LENGTH);
            final String pattern = ResourceBundleUtil.getString(resourceBundle, key);
            if (pattern != null) {
                return pattern;

    assertThat(Comparators.max(2, 1, reverse)).isEqualTo(1);
  }

  /**
   * Fails compilation if the signature of min and max is changed to take {@code Comparator<T>}
   * instead of {@code Comparator<? super T>}.
   */
  public void testMinMaxWithSupertypeComparator() {
    Comparator<Number> numberComparator =

    /**
     * Normalizes the well-known URLs of the specified model.
     *
     * @param model The model whose URLs should be normalized, may be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.
     */
    Model normalize(Model model, ModelBuilderRequest request);