public abstract void clear();

  // Views

  @LazyInit private transient @Nullable Set<E> elementSet;

  @Override
  public Set<E> elementSet() {
    Set<E> result = elementSet;
    if (result == null) {
      elementSet = result = createElementSet();
    }
    return result;
  }

  /**
   * Creates a new instance of this multiset's element set, which will be returned by {@link
   * #elementSet()}.

        assertEquals(rootCause, finalException.getCause().getCause());
    }

    @Test
    @DisplayName("Should handle null message gracefully")
    void testNullMessage() {
        // When/Then
        assertDoesNotThrow(() -> {
            SmbException exception = new SmbException((String) null);
            assertNotNull(exception);
        });
    }

    @Test

     *
     * @return an encryption cipher
     */
    protected Cipher pollEncryptoCipher() {
        Cipher cipher = encryptoQueue.poll();
        if (cipher == null) {
            try {
                final SecretKeySpec sksSpec = new SecretKeySpec(key.getBytes(charsetName), algorithm);
                cipher = Cipher.getInstance(algorithm);

        RenderDataUtil.register(data, "displayCreateLink", !crawlingConfigHelper.getAllWebConfigList(false, false, false, null).isEmpty());

        // restore from pager
        copyBeanToBean(reqHeaderPager, form, op -> op.include("id"));
    }

    // ===================================================================================

                fileAuthenticationService.getFileAuthenticationList(fileAuthenticationPager)); // page navi
        RenderDataUtil.register(data, "displayCreateLink", !crawlingConfigHelper.getAllFileConfigList(false, false, false, null).isEmpty());
        // restore from pager
        copyBeanToBean(fileAuthenticationPager, form, op -> op.include("id"));
    }

    // ===================================================================================

  private static <E extends Comparable<? super E>> SortedSet<E> nullCheckedTreeSet(E[] elements) {
    SortedSet<E> set = newTreeSet();
    for (E element : elements) {
      // Explicit null check because TreeSet wrongly accepts add(null) when empty.
      set.add(checkNotNull(element));
    }
    return set;
  }

  public static class ContiguousSetGenerator extends AbstractContiguousSetGenerator {
    @Override

        try {
            if (this.handle.isValid()) {
                this.handle.close();
            }
        } finally {
            this.file.clearAttributeCache();
            this.tmp = null;
        }
    }

    /**
     * Writes the specified byte to this file output stream.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override

   * @param string the string representation of a {@code float} value
   * @return the floating point value represented by {@code string}, or {@code null} if {@code
   *     string} has a length of zero or cannot be parsed as a {@code float} value
   * @throws NullPointerException if {@code string} is {@code null}
   * @since 14.0
   */
  @GwtIncompatible // regular expressions
  public static @Nullable Float tryParse(String string) {

        testClient.addIndexConfig("fess_log.search_log/search_log");
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        ComponentUtil.setFessConfig(null);
        super.tearDown(testInfo);
    }

    // ==========================================================================
    // addMapping overload delegation

        try {
            final Method method = UriType.class.getMethod("message");
            final Object defaultValue = method.getDefaultValue();
            return defaultValue != null ? defaultValue.toString() : null;
        } catch (final Exception e) {
            return "{org.lastaflute.validator.constraints.UriType.message}";
        }
    }

    private Class<?>[] getDefaultGroups() {
        try {