final T value = getValue(doc, key, clazz);
        if (value == null) {
            return defaultValue;
        }
        return value;
    }

    @SuppressWarnings("unchecked")
    public static <T> T getValue(final Map<String, Object> doc, final String key, final Class<T> clazz) {
        if (doc == null || key == null) {
            return null;
        }

        final Object value = doc.get(key);

        if (classpath == null || classpath.size() < 1) {
            return null;
        }

        MetadataTreeNode tree = null;
        MetadataTreeNode parent = null;

        for (ArtifactMetadata md : classpath) {
            MetadataTreeNode node = new MetadataTreeNode(md, parent, md.isResolved(), md.getArtifactScope());
            if (tree == null) {
                tree = node;
            }

            mavenConf = context.installationDirectory.resolve(context.systemProperties.get(MAVEN_INSTALLATION_CONF));
        } else if (context.systemProperties.get("maven.conf") != null) {
            mavenConf = context.installationDirectory.resolve(context.systemProperties.get("maven.conf"));
        } else if (context.systemProperties.get(MAVEN_HOME) != null) {

            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {
                if (line.length() == 0 || line.charAt(0) == '#') {
                    if (updater != null) {
                        updater.write(line);
                    }
                    continue; // ignore empty lines and comments

    public String getCurrentPageNumber() {
        return pageNumber;
    }

    public void initialize() {
        id = null;
        url = null;
        threadName = null;
        errorName = null;
        errorLog = null;
        errorCount = null;
        lastAccessTime = null;
        configId = null;
    }

        .build(),
    )
    val source = newEventSource()
    assertThat(source.request().url.encodedPath).isEqualTo("/")
    listener.assertOpen()
    listener.assertEvent(null, null, "hey")
    listener.assertClose()
  }

  @RetryingTest(5)
  fun cancelInEventShortCircuits() {
    server.enqueue(
      MockResponse.Builder()
        .body(
          """
          |data: hey

    multimap().put(k3(), null);

    assertGet(k3(), Lists.newArrayList((V) null)); // ImmutableList.of can't take null.
    assertEquals(size + 1, multimap().size());
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  public void testPutNullValue_unsupported() {
    assertThrows(NullPointerException.class, () -> multimap().put(k1(), null));

    expectUnchanged();
  }

    multimap().put(k3(), null);

    assertGet(k3(), Lists.newArrayList((V) null)); // ImmutableList.of can't take null.
    assertEquals(size + 1, multimap().size());
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  public void testPutNullValue_unsupported() {
    assertThrows(NullPointerException.class, () -> multimap().put(k1(), null));

    expectUnchanged();
  }

            return builder.execute();
        });
        final OpenSearchResultList<OpenSearchAccessResult> targetList = new OpenSearchResultList<>();
        final SearchHits hits = response.getHits();
        final TotalHits totalHits = hits.getTotalHits();
        final long totalHitsValue = totalHits != null ? totalHits.value : 0;

        copyBeanToBean(src, dest, buildCopyOptions(option));
    }

    /**
     * BeanからBeanにコピーを行います。
     *
     * @param src コピー元のBean。{@literal null}であってはいけません
     * @param dest コピー先のBean。{@literal null}であってはいけません
     * @param options コピーのオプション。{@literal null}であってはいけません
     * @see CopyOptionsUtil
     */
    protected static void copyBeanToBean(final Object src, final Object dest, final CopyOptions options) {