@Override
    public Object getAsObject(final String value) {
        if (isEmpty(value)) {
            return null;
        }
        return TimestampConversionUtil.toSqlTimestamp(value, pattern);
    }

    @Override
    public String getAsString(final Object value) {
        if (value == null) {
            return null;
        }
        return StringConversionUtil.toString((Date) value, pattern);
    }

    @Override

     *
     * @param model The model whose report plugin configuration should be expanded, must not be <code>null</code>.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    void expandPluginConfiguration(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

     * @param message The detail message of the problem, may be {@code null}.
     * @param line The one-based index of the line containing the problem or {@code -1} if unknown.
     * @param column The one-based index of the column containing the problem or {@code -1} if unknown.
     * @param cause The cause of the problem, may be {@code null}.
     */

  }

  @Override
  public final boolean containsValue(@Nullable Object value) {
    return delegate.containsValue(value);
  }

  @Override
  public @Nullable V get(@Nullable Object key) {
    return (key == null) ? null : Maps.safeGet(delegate, key);
  }

  @Override
  ImmutableSet<Entry<K, V>> createEntrySet() {
    return ImmutableSet.unsafeDelegate(
        new ForwardingSet<Entry<K, V>>() {
          @Override

        Activation activation = profile.getActivation();

        if (activation == null) {
            return false;
        }

        ActivationFile file = activation.getFile();

        if (file == null) {
            return false;
        }

        String path;
        boolean missing;

        if (StringUtils.isNotEmpty(file.getExists())) {

    assertTrue(multimap().containsKey(null));
  }

  @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES)
  public void testContainsKeyNullAbsent() {
    assertFalse(multimap().containsKey(null));
  }

  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
  public void testContainsKeyNullDisallowed() {
    assertThrows(NullPointerException.class, () -> multimap().containsKey(null));
  }

    public void testCreateProviderDisni() {
        RdmaProvider provider = RdmaProviderFactory.createProvider("disni");
        // DiSNI may or may not be available depending on system configuration
        if (provider != null) {
            assertTrue(provider.isAvailable(), "If DiSNI provider is returned, it should be available");
            assertEquals("DiSNI (InfiniBand/RoCE)", provider.getProviderName());
        }
    }

    @Test

     * @return The build summary for the project or {@code null} if the project has not been built (yet).
     */
    BuildSummary getBuildSummary(MavenProject project);

    /**
     * Add the specified build summary.
     *
     * @param summary The build summary to add, must not be {@code null}.
     */
    void addBuildSummary(BuildSummary summary);

    /*
     * (non-Javadoc)
     *
     * @see org.seasar.extension.timer.TimeoutTarget#expired()
     */
    @Override
    public void expired() {
        if (clientConnectionManager == null) {
            logger.warn("clientConnectionManager is null.");
            return;
        }

        try {
            // Close expired connections
            clientConnectionManager.closeExpiredConnections();

        assertEquals("b", result[1]);
        assertEquals("c", result[2]);
    }

    @Test
    public void test_distinct_withNullElements() {
        // Test distinct with null elements
        String[] input = new String[] { "a", null, "b", null, "a" };
        String[] result = invokeDistinct(input);
        assertEquals(3, result.length);
        assertEquals("a", result[0]);
        assertNull(result[1]);