* @return an OptionalThing containing the pipeline string if found, or empty if not found or blank
     */
    public OptionalThing<String> getPipeline(final String configId) {
        final CrawlingConfig config = getCrawlingConfig(configId);
        if (config == null) {
            return OptionalThing.empty();
        }

            assertTrue(auth1.equals(new NtlmPasswordAuthenticator("domain", "user", (String) null)));

            // Test null vs empty
            assertFalse(auth1.equals(auth2));

            // Test null vs password
            assertFalse(auth1.equals(auth3));

            // Test empty vs password
            assertFalse(auth2.equals(auth3));

            // These operations should complete quickly and consistently

    }

    /**
     * Retrieves a specific failure URL by its ID.
     *
     * @param id the unique identifier of the failure URL
     * @return an OptionalEntity containing the FailureUrl if found, empty otherwise
     */
    public OptionalEntity<FailureUrl> getFailureUrl(final String id) {
        return failureUrlBhv.selectByPK(id);
    }

    /**
     * Stores or updates a failure URL entity in the data store.

        assertEquals("word", item1.getInputValue());

        StopwordsItem item2 = new StopwordsItem(2, "");
        assertEquals("", item2.getInputValue());

        // Test with null input - should return empty string
        StopwordsItem item3 = new StopwordsItem(3, null);
        assertEquals("", item3.getInputValue());
    }

    public void test_isUpdated() {
        // Test isUpdated method

    getMultiset().entrySet().clear();
    assertTrue("multiset not empty after entrySet().clear()", getMultiset().isEmpty());
  }

  @CollectionSize.Require(ONE)
  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  public void testEntrySet_iteratorRemovePropagates() {
    Iterator<Multiset.Entry<E>> iterator = getMultiset().entrySet().iterator();
    assertTrue(

        assertEquals("tc", npe.getMessage());
    }

    @Test
    @DisplayName("createContext accepts null/empty optional parameters")
    void createContext_edge_parameters_ok() throws Exception {
        TestCredentials creds = new TestCredentials("D", false, false, new Subject(), false);
        // Intentionally pass null/empty values for optional parameters; expect no exception

    for (Character c : map.keySet()) {
      replacements[c] = map.get(c).toCharArray();
    }
    return replacements;
  }

  // Immutable empty array for when there are no replacements.
  @SuppressWarnings("ConstantCaseForConstants") // An empty array is a constant.
  private static final char[][] EMPTY_REPLACEMENT_ARRAY = new char[0][0];

    }

    /**
     * Create mapping if empty.
     * @param index Index
     * @param type Type
     * @param client OpenSearch client
     */
    protected void createMappingIfEmpty(final String index, final String type, final Client client) {
        final String actualIndex = index + "." + type.toLowerCase(Locale.ENGLISH);
        try {
            boolean empty;
            try {

  }

  /**
   * Returns the string if it is not null, or an empty string otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} if it is not null; {@code ""} otherwise
   */
  static String nullToEmpty(@Nullable String string) {
    return (string == null) ? "" : string;
  }

  /**
   * Returns the string if it is not empty, or a null string otherwise.
   *

			"dir/object1",
			[]string{"dir/object2"},
		},
		// Test 4: remove a non empty directory and checks it has no effect
		{
			"bucket4",
			[]objectUpload{{"object0", "content"}, {"dir/object1", "content"}},
			"dir/",
			[]string{"dir/object1", "object0"},
		},
		// Test 5: Remove an empty directory and checks it is really removed
		{
			"bucket5",