*
   * <pre>{@code
   * a   c
   * |   |
   * |   |
   * b   d
   * }</pre>
   */
  private static final SuccessorsFunction<Character> TWO_TREES = createDirectedGraph("ab", "cd");

  /**
   * A graph consisting of a single root {@code a}:
   *
   * <pre>{@code
   * a
   * }</pre>
   */

 * コピー元とコピー先のJavaBeansを指定することで、プロパティがコピーされます。
 * </p>
 *
 * <pre>
 * import static org.codelibs.core.beans.util.BeanUtil.*;
 *
 * copyBeanToBean(srcBean, destBean);
 * </pre>
 * <p>
 * JavaBeansから{@link Map}あるいは{@link Map}からJavaBeansへコピーすることも出来ます。
 * </p>
 *
 * <pre>
 * copyBeanToMap(srcBean, destMap);
 * copyMapToBean(srcMap, destBean);
 * </pre>
 * <p>
 * コピー先となるJavaBeansまたは{@link Map}のインスタンスを新たに生成してコピーすることも出来ます。

     * represent the same element and count. That is, two entries {@code a} and {@code b} are equal
     * if:
     *
     * <pre>{@code
     * Objects.equal(a.getElement(), b.getElement())
     *     && a.getCount() == b.getCount()
     * }</pre>
     */
    @Override
    // TODO(kevinb): check this wrt TreeMultiset?
    boolean equals(@CheckForNull Object o);

    /**
     * {@inheritDoc}

     * {@link #format(String, Object...)}を{@literal static import}しておくと便利です。
     * </p>
     *
     * <pre>
     * import static org.codelibs.core.log.Logger.format;
     *
     * Logger logger = Logger.getLogger(Xxx.class);
     * logger.log(format("DXXX0000", arg1, arg2, arg3));
     * </pre>
     *
     * @param logMessage
     *            ログメッセージ。{@literal null}であってはいけません
     */

        if (StringUtil.isBlank(content)) {
            return "<pre class=\"" + style + "\">" + input.replaceAll("L[0-9]+:", StringUtil.EMPTY).trim() + "</pre>";
        }
        return "<pre class=\"" + style + " linenums:" + lineNum + "\">" + content + "</pre>";
    }

    public static String getMessage(final String key, final String defaultValue) {

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testIsNull_serialization() {
    Predicate<String> pre = Predicates.isNull();
    Predicate<String> post = SerializableTester.reserializeAndAssert(pre);
    assertEquals(pre.apply("foo"), post.apply("foo"));
    assertEquals(pre.apply(null), post.apply(null));
  }

  public void testNotNull_apply() {

   * final} multimaps ("constant multimaps"). Example:
   *
   * <pre>{@code
   * static final Multimap<String, Integer> STRING_TO_INTEGER_MULTIMAP =
   *     new ImmutableSetMultimap.Builder<String, Integer>()
   *         .put("one", 1)
   *         .putAll("several", 1, 2, 3)
   *         .putAll("many", 1, 2, 3, 4, 5)
   *         .build();
   * }</pre>
   *

   * {@code Optional} class. However, this common usage:
   *
   * <pre>{@code
   * for (Foo foo : possibleFoo.asSet()) {
   *   doSomethingWith(foo);
   * }
   * }</pre>
   *
   * ... can be replaced with:
   *
   * <pre>{@code
   * possibleFoo.ifPresent(foo -> doSomethingWith(foo));
   * }</pre>
   *

 * factory classes like:
 *
 * <pre>
 * interface Book {...}
 * public class Books {
 *   public static Book hardcover(String title) {...}
 *   public static Book paperback(String title) {...}
 * }
 * </pre>
 *
 * <p>And all the created {@code Book} instances can be tested with:
 *
 * <pre>
 * new ClassSanityTester()
 *     .forAllPublicStaticMethods(Books.class)

/**
 */
public class LifecycleExecutionPlanCalculatorStub implements LifecycleExecutionPlanCalculator {
    // clean

    public static final MojoDescriptor PRE_CLEAN = createMojoDescriptor("pre-clean");

    public static final MojoDescriptor CLEAN = createMojoDescriptor("clean");

    public static final MojoDescriptor POST_CLEAN = createMojoDescriptor("post-clean");