public class JsonUtil {

    /**
     * Defualt constructor.
     */
    protected JsonUtil() {
    }

    /**
     * Escapes a value as Json string.
     *
     * @param value input
     * @return escaped string.
     */
    public static String escape(final String value) {
        if (value == null) {
            return null;
        }

        char c;
        final int len = value.length();

    private final String layoutId;

    public UnknownRepositoryLayoutException(String repositoryId, String layoutId) {
        super("Cannot find ArtifactRepositoryLayout instance for: " + layoutId, repositoryId);
        this.layoutId = layoutId;
    }

    public UnknownRepositoryLayoutException(String repositoryId, String layoutId, ComponentLookupException e) {

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String slackWebhookUrls = fessConfig.getSlackWebhookUrls();
        if (StringUtil.isBlank(slackWebhookUrls)) {
            return;
        }
        final String body = toSlackMessage(discloser);
        StreamUtil.split(slackWebhookUrls, "[,\\s]").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(url -> {

    windowSizeIncrement: Long,
  ): String {
    val formattedType = formattedType(TYPE_WINDOW_UPDATE)
    val direction = if (inbound) "<<" else ">>"
    return format(
      "%s 0x%08x %5d %-13s %d",
      direction,
      streamId,
      length,
      formattedType,
      windowSizeIncrement,
    )
  }

    private DefaultArtifact snapshotArtifact;

    private String groupId = "groupid",
            artifactId = "artifactId",
            version = "1.0",
            scope = "artifactScope",
            type = "type",
            classifier = "classifier";

    private String snapshotSpecVersion = "1.0-SNAPSHOT";
    private String snapshotResolvedVersion = "1.0-20070606.010101-1";

    String[] in = new String[0];
    String[] empty = ObjectArrays.newArray(in, 0);
    assertThat(empty).isEmpty();
  }

  public void testNewArray_fromArray_nonempty() {
    String[] array = ObjectArrays.newArray(new String[0], 2);
    assertEquals(String[].class, array.getClass());
    assertThat(array).hasLength(2);
    assertNull(array[0]);
  }

  public void testNewArray_fromArray_ofArray() {

     */
    public static Map<ConfigName, Map<String, String>> createConfigParameterMap(final String configParameters) {
        final Map<ConfigName, Map<String, String>> map = new HashMap<>();
        final Map<String, String> configConfigMap = new LinkedHashMap<>();
        final Map<String, String> clientConfigMap = new LinkedHashMap<>();
        final Map<String, String> xpathConfigMap = new LinkedHashMap<>();

gatable\":false,\"readFromDocValues\":false},{\"name\":\"_type\",\"type\":\"string\",\"esTypes\":[\"_type\"],\"count\":0,\"scripted\":false,\"searchable\":true,\"aggregatable\":true,\"readFromDocValues\":false},{\"name\":\"accessType\",\"type\":\"string\",\"esTypes\":[\"keyword\"],\"count\":0,\"scripted\":false,\"searchable\":true,\"aggregatable\":true,\"readFromDocValues\":true},{\"name\":\"clientIp\",\"type\":\"string\",\"esTypes\":[\"keyword\"],\"count\":0,\"scripted\":false,\"searchable\":tr...

    int i = 0;
    for (Object o : entries) {
      @SuppressWarnings("unchecked")
      Entry<String, String> e = (Entry<String, String>) o;
      array[i++] = e;
    }
    return create(array);
  }

  protected abstract ListMultimap<String, String> create(Entry<String, String>[] entries);

  @Override
  @SuppressWarnings("unchecked")

    int i = 0;
    for (Object o : entries) {
      @SuppressWarnings("unchecked")
      Entry<String, String> e = (Entry<String, String>) o;
      array[i++] = e;
    }
    return create(array);
  }

  protected abstract SetMultimap<String, String> create(Entry<String, String>[] entries);

  @Override
  @SuppressWarnings("unchecked")