* <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>

     *     </ul>
     *   </li>
     *   <li>Otherwise (test output contains no module information), then:
     *     <ul>
     *       <li>If the main output is on the module-path, place the test output
     *           on a {@code --patch-module} option.</li>
     *       <li>Otherwise (main output on the class-path), place the test output on the class-path too.</li>
     *     </ul>
     *   </li>

     * 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>

     *     </ul>
     *   </li>
     *   <li>Otherwise (test output contains no module information), then:
     *     <ul>
     *       <li>If the main output is on the module-path, place the test output
     *           on a {@code --patch-module} option.</li>
     *       <li>Otherwise (main output on the class-path), place the test output on the class-path too.</li>
     *     </ul>
     *   </li>

     * <li>The parent uses aggregation and refers to the child via the modules section</li>
     * <li>The module path to the child is considered to
     * point at the POM rather than its base directory if the path ends with ".xml" (ignoring case)</li>
     * <li>The name of the child's base directory matches the artifact id of the child.</li>
     * </ul>

 *
 * <ul>
 *   <li><b>Shallow immutability.</b> Elements can never be added, removed or replaced in this
 *       collection. This is a stronger guarantee than that of {@link
 *       Collections#unmodifiableCollection}, whose contents change whenever the wrapped collection
 *       is modified.
 *   <li><b>Null-hostility.</b> This collection will never contain a null element.

     * <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,

 * </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

 *
 * <ul>
 *   <li><b>Shallow immutability.</b> Elements can never be added, removed or replaced in this
 *       collection. This is a stronger guarantee than that of {@link
 *       Collections#unmodifiableCollection}, whose contents change whenever the wrapped collection
 *       is modified.
 *   <li><b>Null-hostility.</b> This collection will never contain a null element.

     * <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,