expected[getNullLocation()] = entry(null, v3());
    expectContents(expected);
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_KEYS})
  public void testComputeIfPresent_nullKeySupportedAbsent() {
    assertNull(
        "computeIfPresent(null, function) should return null",
        getMap()
            .computeIfPresent(
                null,
                (k, v) -> {

    }

    @Test
    @DisplayName("writeBytesWireFormat with null path returns minimal bytes")
    void testWriteWhenPathIsNull() {
        // When path is null, Strings.getOEMBytes returns empty array, not NPE
        when(mockConfig.getOemEncoding()).thenReturn("windows-1252");
        SmbComQueryInformation nullPathCmd = new SmbComQueryInformation(mockConfig, null);
        byte[] buffer = new byte[50];

        if (httpClient == null) {
            init();
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Accessing {}", url);
        }

        // start
        AccessTimeoutTarget accessTimeoutTarget = null;
        TimeoutTask accessTimeoutTask = null;
        if (accessTimeout != null) {

                if (cleanupCalled != null) {
                    cleanupCalled.set(true);
                }
                if (cleanupRetries != null) {
                    cleanupRetries.set(remainingRetries);
                }
                if (cleanupName != null) {
                    cleanupName.set(operationName);
                }
                if (cleanupData != null) {
                    cleanupData.set(data);

        }
    }

    @Test
    public void test_process_withNullParameters() throws IOException, ServletException {
        // Test null parameter handling
        TestWebApiManager manager = new TestWebApiManager("/api");

        try {
            manager.process(null, null, null);
            assertTrue(manager.isProcessCalled());
        } catch (NullPointerException e) {
            // Expected for some implementations

        if (requestBody != null && requestBody.isOneShot()) {
          return null
        }

        if (exchange == null || !exchange.isCoalescedConnection) {
          return null
        }

        exchange.connection.noCoalescedConnections()
        return userResponse.request
      }

      else -> {
        return null
      }
    }
  }

    assertTrue(multimap().putAll(k0(), newArrayList(v3(), null)));
    assertGet(k0(), v0(), v3(), null);
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  public void testPutAllNullValueOnAbsentKey_supported() {
    assertTrue(multimap().putAll(k3(), newArrayList(v3(), null)));
    assertGet(k3(), v3(), null);
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)

        assertTrue(item1.equals(item2));

        // Item with null output should not equal item with non-null output
        assertFalse(item3.equals(item1));
        assertFalse(item1.equals(item3));

        // Item with null output should not equal item with different inputs
        CharMappingItem item4 = new CharMappingItem(4L, inputs3, null);

        // Check build/plugins
        Element buildElement = root.child(BUILD).orElse(null);
        if (buildElement != null) {
            Element pluginsElement = buildElement.child(PLUGINS).orElse(null);
            if (pluginsElement != null) {
                hasUpgrades |= upgradePluginsInSection(

        if (!isInit) {
            init();
        }

        // start
        AccessTimeoutTarget accessTimeoutTarget = null;
        TimeoutTask accessTimeoutTask = null;
        if (accessTimeout != null) {
            accessTimeoutTarget = new AccessTimeoutTarget(Thread.currentThread());