* </p>
 * <ul>
 * <li>{@literal file}</li>
 * <li>{@literal jar}</li>
 * <li>{@literal wsjar} (WebShpere独自プロトコル、{@literal jar}の別名)</li>
 * <li>{@literal zip} (WebLogic独自プロトコル、通常のZipファイルは{@literal jar}プロトコルを使用してください)</li>
 * <li>{@literal code-source} (Oracle AS(OC4J)独自プロトコル)</li>
 * <li>{@literal vfsfile} (JBossAS5独自プロトコル、{@literal file}の別名)</li>
 * <li>{@literal vfszip} (JBossAS5独自プロトコル)</li>
 * </ul>
 *
 * @author koichik

     * <p><b>Algorithm:</b>
     * If the given path is a directory, then there is a choice:
     * </p>
     * <ul>
     *   <li><b>Package hierarchy:</b> if a {@code module-info.class} file is found at the root,
     *       then builds a singleton map with the module name declared in that descriptor.</li>
     *   <li><b>Module hierarchy:</b> if {@code module-info.class} files are found in sub-directories,

  }

  /**
   * Verifies that a collection is immutable.
   *
   * <p>A collection is considered immutable if:
   *
   * <ol>
   *   <li>All its mutation methods result in UnsupportedOperationException, and do not change the
   *       underlying contents.
   *   <li>All methods that return objects that can indirectly mutate the collection throw
   *       UnsupportedOperationException when those mutators are called.
   * </ol>

     * Some spec examples are:
     * <ul>
     * <li><code>1.0</code> Version 1.0 as a recommended version</li>
     * <li><code>[1.0]</code> Version 1.0 explicitly only</li>
     * <li><code>[1.0,2.0)</code> Versions 1.0 (included) to 2.0 (not included)</li>
     * <li><code>[1.0,2.0]</code> Versions 1.0 to 2.0 (both included)</li>
     * <li><code>[1.5,)</code> Versions 1.5 and higher</li>

  }

  /**
   * Verifies that a collection is immutable.
   *
   * <p>A collection is considered immutable if:
   *
   * <ol>
   *   <li>All its mutation methods result in UnsupportedOperationException, and do not change the
   *       underlying contents.
   *   <li>All methods that return objects that can indirectly mutate the collection throw
   *       UnsupportedOperationException when those mutators are called.
   * </ol>

   *
   * <ol>
   *   <li>calls {@link ExecutorService#shutdown()}, disabling acceptance of new submitted tasks.
   *   <li>awaits executor service termination for half of the specified timeout.
   *   <li>if the timeout expires, it calls {@link ExecutorService#shutdownNow()}, cancelling
   *       pending tasks and interrupting running tasks.

 * actions taken by the java garbage collection system:
 *
 * <ul>
 *   <li>invoking the {@code finalize} methods of unreachable objects
 *   <li>clearing weak references to unreachable referents
 *   <li>enqueuing weak references to unreachable referents in their reference queue
 * </ul>
 *

   * consistentHash(h, n)} equals:
   *
   * <ul>
   *   <li>{@code n - 1}, with approximate probability {@code 1/n}
   *   <li>{@code consistentHash(h, n - 1)}, otherwise (probability {@code 1 - 1/n})
   * </ul>
   *
   * <p>This method is suitable for the common use case of dividing work among buckets that meet the
   * following conditions:
   *
   * <ul>
   *   <li>You want to assign the same fraction of inputs to each bucket.

     * <ul>
     * <li><code>type</code>がパラメータ化された型の配列でない場合は<code>null</code>を返します。</li>
     * <li><code>type</code>が<code>Class</code>の場合はそのまま返します。</li>
     * <li><code>type</code>がパラメータ化された型の場合はその原型を返します。</li>
     * <li><code>type</code>がワイルドカード型の場合は(最初の)上限境界を返します。</li>
     * <li><code>type</code>が型変数の場合はその変数の実際の型引数を返します。</li>
     * <li><code>type</code>が配列の場合はその要素の実際の型の配列を返します。</li>

 *       defined this way, but enough to live with.
 *   <li>If you override {@link #setUp} or {@link #tearDown}, make sure to invoke {@code
 *       super.setUp} and {@code super.tearDown} within them. These methods are used to clear and
 *       check for thread assertion failures.
 *   <li>All delays and timeouts must use one of the constants {@code SHORT_DELAY_MS}, {@code