* @throws NullPointerException if both {@code first} and {@code second} are null
   * @since 18.0 (since 3.0 as {@code Objects.firstNonNull()}).
   */
  public static <T> T firstNonNull(@Nullable T first, @Nullable T second) {
    if (first != null) {
      return first;
    }
    if (second != null) {
      return second;
    }
    throw new NullPointerException("Both parameters are null");

      for (RoundingMode mode : modes) {
        Double previous = expectedValues.put(mode, expectedValue);
        if (previous != null) {
          throw new AssertionError();
        }
      }
      return this;
    }

    @CanIgnoreReturnValue
    RoundToDoubleTester roundUnnecessaryShouldThrow() {
      unnecessaryShouldThrow = true;

        try {
            return createProtwordsItem(this, form, hook);
        } catch (final ValidationErrorException e) {
            saveToken();
            throw e;
        }
    }

    /**
     * Get the protected word item.
     * @param action The action.
     * @param form The create form.
     * @param hook The error hook.

        assertEquals(0, tags.length);
    }

    public void test_parse_invalidFormats() {
        // Test invalid formats that should throw FessSystemException
        try {
            PrunedTag.parse("invalid_format_with_special_chars@#$%");
            fail("Should have thrown FessSystemException");
        } catch (FessSystemException e) {
            assertTrue(e.getMessage().contains("Invalid pruned tag"));
        }

  }

  private void moveHelper(boolean success, File from, File to) throws IOException {
    try {
      Files.move(from, to);
      if (success) {
        assertFalse(from.exists());
        assertTrue(to.exists());
      } else {
        fail("expected exception");
      }
    } catch (IOException possiblyExpected) {
      if (success) {
        throw possiblyExpected;
      }
    }
  }

        final String username = paramMap.get(CRAWLER_WEB_AUTH + "." + webAuthName + ".username");
        if (StringUtil.isEmpty(username)) {
            throw new CrawlerSystemException("username is empty. webAuth:" + webAuthName);
        }
        final String password = paramMap.get(CRAWLER_WEB_AUTH + "." + webAuthName + ".password");
        Credentials credentials;

    @BeforeEach
    void setUp() throws Exception {
        source = new Source();

        projectArtifact = createArtifactSpec("project", "1.0", null);
    }

    @Test
    @Disabled("works, but we don't fail on cycles presently")
    void testCircularDependencyNotIncludingCurrentProject()
            throws ArtifactResolutionException, InvalidVersionSpecificationException {

        try {
            return createKuromojiItem(this, form, hook);
        } catch (final ValidationErrorException e) {
            saveToken();
            throw e;
        }
    }

    /**
     * Create a kuromoji item.
     * @param action The action.
     * @param form The create form.
     * @param hook The error hook.

/*! jQuery v3.7.1 | (c) OpenJS Foundation and other contributors | jquery.org/license */

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testParse_useConstants() throws Exception {
    for (MediaType constant : getConstants()) {
      assertSame(constant, MediaType.parse(constant.toString()));
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testCreate_useConstants() throws Exception {
    for (MediaType constant : getConstants()) {
      assertSame(
          constant,