try {
      assertNull(
          "remove(null) should return null or throw NullPointerException", getMap().remove(null));
    } catch (NullPointerException tolerated) {
    }
    expectUnchanged();
  }

  @MapFeature.Require({SUPPORTS_REMOVE, ALLOWS_NULL_KEY_QUERIES})
  public void testRemove_nullSupportedMissing() {
    assertNull("remove(null) should return null", getMap().remove(null));

  @CollectionSize.Require(ZERO)
  public void testEmptySetPollFirst() {
    assertNull(navigableSet.pollFirst());
  }

  @CollectionSize.Require(ZERO)
  public void testEmptySetNearby() {
    assertNull(navigableSet.lower(e0()));
    assertNull(navigableSet.floor(e0()));
    assertNull(navigableSet.ceiling(e0()));
    assertNull(navigableSet.higher(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)

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

    @Test
    public void test_constructorWithNullMessageAndCause() {
        // Test constructor with null message and null cause
        ThumbnailGenerationException exception = new ThumbnailGenerationException(null, null);

        assertNull(exception.getMessage());

    public void test_constructor() {
        // Test default constructor
        DictionaryExpiredException exception = new DictionaryExpiredException();
        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_instanceOf() {
        // Test that exception is instance of RuntimeException

    }

    @Test
    public void test_responseData_defaultValues() {
        final ResponseData responseData = new ResponseData();

        assertNull(responseData.getUrl());
        assertNull(responseData.getMimeType());
        assertNull(responseData.getCharSet());
        assertEquals(0, responseData.getHttpStatusCode());
        assertEquals(0, responseData.getContentLength());
    }

    @Test

        final ActionForm form = new ActionForm();
        assertNull(form.replaceAliases);
        assertNull(form.resetDictionaries);
        // numberOfShardsForDoc and autoExpandReplicasForDoc have defaults from FessConfig
        assertNotNull(form.numberOfShardsForDoc);
        assertNotNull(form.autoExpandReplicasForDoc);
        assertNull(form.loadBulkData);
        // rebuildConfigIndex defaults to Constants.ON

        assertNull(exception.getCause());
    }

    @Test
    public void test_constructor_withEmptyMessage() {
        // Test with empty message
        String message = "";
        UnsupportedSearchException exception = new UnsupportedSearchException(message);

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test

        void testDefaultConstructor() {
            TransportException exception = new TransportException();

            assertNotNull(exception);
            assertNull(exception.getMessage());
            assertNull(exception.getRootCause());
            assertTrue(exception instanceof IOException);
        }

        @Test
        @DisplayName("Should create exception with message")

        DocMap docMap = new DocMap(parentMap);

        assertNull(docMap.put("newKey", "newValue"));
        assertEquals("newValue", docMap.get("newKey"));

        assertEquals("newValue", docMap.put("newKey", "updatedValue"));
        assertEquals("updatedValue", docMap.get("newKey"));

        assertNull(docMap.get("nonexistent"));
    }

    @Test
    public void test_remove() {

public class MapComputeIfPresentTester<K, V> extends AbstractMapTester<K, V> {

  @MapFeature.Require(SUPPORTS_PUT)
  public void testComputeIfPresent_supportedAbsent() {
    assertNull(
        "computeIfPresent(notPresent, function) should return null",
        getMap()
            .computeIfPresent(
                k3(),
                (k, v) -> {
                  throw new AssertionFailedError();