@Nested
    @DisplayName("Invalid input – null file handling")
    class InvalidPath {
        @Test
        void acceptWithNullThrows() {
            SmbFileFilter throwOnNull = new SmbFileFilter() {
                @Override
                public boolean accept(SmbFile file) throws SmbException {
                    if (file == null) {
                        throw new SmbException("null file");
                    }

        super.setUp();
        webFsIndexHelper = new WebFsIndexHelper();
    }

    public void test_crawl_withNullParameters() {
        try {
            webFsIndexHelper.crawl("sessionId", null, null);
            assertTrue(true);
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    public void test_crawl_withEmptyLists() {
        try {

            if (dirManager != null && smbFile.getContext().getConfig().isUseDirectoryLeasing()) {
                // Check parent directory cache first
                String parentPath = smbFile.getParent();
                if (parentPath != null) {
                    var parentCache = dirManager.getCacheEntry(parentPath);
                    if (parentCache != null && parentCache.isComplete()) {

  public void testEqual() throws Exception {
    assertTrue(Objects.equal(1, 1));
    assertTrue(Objects.equal(null, null));

    // test distinct string objects
    String s1 = "foobar";
    String s2 = new String(s1);
    assertTrue(Objects.equal(s1, s2));

    assertFalse(Objects.equal(s1, null));
    assertFalse(Objects.equal(null, s1));
    assertFalse(Objects.equal("foo", "bar"));
    assertFalse(Objects.equal("1", 1));
  }

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

    initCollectionWithNullElement();
    expectReturnsTrue(disjoint);
    expectContents();
  }

  // retainAll(null)

  /*
   * AbstractCollection fails the retainAll(null) test when the subject
   * collection is empty, but we'd still like to test retainAll(null) when we
   * can. We split the test into empty and non-empty cases. This allows us to
   * suppress only the former.
   */

    Collection<V> collection = asMap().get(key);
    return collection != null && collection.contains(value);
  }

  @CanIgnoreReturnValue
  @Override
  public boolean remove(@Nullable Object key, @Nullable Object value) {
    Collection<V> collection = asMap().get(key);
    return collection != null && collection.remove(value);
  }

  @CanIgnoreReturnValue
  @Override

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

    public void test_constructor_withNullMessageAndCause() {
        // Test with both null message and cause
        DataStoreException exception = new DataStoreException(null, null);

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());

    }

    @Test
    @DisplayName("readParameterWordsWireFormat with null buffer - throws NullPointerException")
    void testReadParameterWordsWithNullBuffer() {
        assertThrows(NullPointerException.class, () -> response.readParameterWordsWireFormat(null, 0));
    }

    @Test
    @DisplayName("readParameterWordsWireFormat with offset beyond buffer - throws exception")

    super.addOutEdge(edge, node);
    Multiset<N> adjacentNodes = getReference(adjacentNodesReference);
    if (adjacentNodes != null) {
      checkState(adjacentNodes.add(node));
    }
  }

  private static <T> @Nullable T getReference(@Nullable Reference<T> reference) {
    return (reference == null) ? null : reference.get();
  }