* @throws IllegalArgumentException if name or queryCommand is null
     */
    public void add(final String name, final QueryCommand queryCommand) {
        if (name == null || queryCommand == null) {
            throw new IllegalArgumentException("name or queryCommand is null.");
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", name);
        }

   * {@link Equivalence#equivalent} returns {@code true} if both values are null, or if neither
   * value is null and {@link Object#equals} returns {@code true}. {@link Equivalence#hash} returns
   * {@code 0} if passed a null value.
   *
   * @since 13.0
   * @since 8.0 (in Equivalences with null-friendly behavior)
   * @since 4.0 (in Equivalences)
   */
  public static Equivalence<Object> equals() {

    // manually add elements to avoid expansion
    // 1/3 null keys, 1/3 null values
    int originalCount = 1024;
    ReferenceEntry<Object, Object> entry = null;
    for (int i = 0; i < originalCount; i++) {
      Object key = new Object();
      Object value = (i % 3 == 0) ? null : new Object();
      int hash = map.hash(key);
      if (i % 3 == 1) {
        key = null;
      }

    }

    public void test_isEmptyArray_withNullElements() {
        assertTrue(searchRequestParams.isEmptyArray(new String[] { null, null }));
    }

    public void test_isEmptyArray_withMixedBlankAndNull() {
        assertTrue(searchRequestParams.isEmptyArray(new String[] { null, "", "  " }));
    }

    public void test_isEmptyArray_withNonEmptyString() {

        dataStoreParams.put("boolKey", true);
        assertEquals("true", dataStoreParams.getAsString("boolKey"));
    }

    // Test getAsString with null value
    public void test_getAsStringWithNullValue() {
        dataStoreParams.put("nullKey", null);
        assertNull(dataStoreParams.getAsString("nullKey"));
    }

    // Test getAsString for non-existent key
    public void test_getAsStringNonExistentKey() {

            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL));
            return null;
        }).orElseGet(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL));
            return null;
        });
        stopwordsService.store(body.dictId, entity);
        return asJson(

        DeferredFileOutputStream dfos = null;
        try (DeferredFileOutputStream out = new DeferredFileOutputStream(cacheFileSize, "fess-extractor-", ".out", null)) {
            dfos = out;
            CopyUtil.copy(in, out);
            out.flush();

            Extractor extractor = StringUtil.isBlank(mimeType) ? null : extractorFactory.getExtractor(mimeType);
            if (extractor == null) {

    @RetainedLocalRef ListenableFuture<? extends I> localInputFuture = inputFuture;
    @RetainedLocalRef F localFunction = function;
    if (isCancelled() | localInputFuture == null | localFunction == null) {
      return;
    }
    inputFuture = null;

    if (localInputFuture.isCancelled()) {
      @SuppressWarnings("unchecked")
      boolean unused =

            assertNull(exception.getMessage());
        });
    }

    @Test
    @DisplayName("Should handle null cause gracefully")
    void testNullCause() {
        // When/Then
        assertDoesNotThrow(() -> {
            RuntimeCIFSException exception = new RuntimeCIFSException((Throwable) null);
            assertNull(exception.getCause());
        });

        existNextPage = false;
        pageSize = getDefaultPageSize();
        currentPageNumber = getDefaultCurrentPageNumber();

        id = null;
        jobName = null;
        jobStatus = null;
        target = null;
        scriptType = null;
        startTime = null;

    }

    /**
     * Gets the default current page number.
     *
     * @return the default current page number
     */