final String value = processVirtualHost(s -> s, StringUtil.EMPTY);
            LaRequestUtil.getOptionalRequest().ifPresent(req -> req.setAttribute(FessConfig.VIRTUAL_HOST_VALUE, value));
            return value;
        });
    }

    protected <T> T processVirtualHost(final Function<String, T> func, final T defaultValue) {

        assertNull(DocumentUtil.getValue(doc, "key2", String.class));
    }

    public void test_strings() {
        Map<String, Object> doc = new HashMap<>();
        doc.put("key1", new String[] { "aaa", "bbb" });
        assertArrayEquals(new String[] { "aaa", "bbb" }, DocumentUtil.getValue(doc, "key1", String[].class));
        assertEquals(Arrays.asList("aaa", "bbb"), (List<String>) DocumentUtil.getValue(doc, "key1", List.class));
    }

type RootFlags struct {
	kubeconfig       *string
	configContext    *string
	impersonate      *string
	impersonateUID   *string
	impersonateGroup *[]string
	namespace        *string
	istioNamespace   *string

	defaultNamespace string
}

func AddRootFlags(flags *pflag.FlagSet) *RootFlags {
	r := &RootFlags{
		kubeconfig:       ptr.Of[string](""),
		configContext:    ptr.Of[string](""),
		impersonate:      ptr.Of[string](""),

    protected transient volatile Map<ConfigName, Map<String, String>> configParameterMap;

    protected CrawlerClientFactory crawlerClientFactory = null;

    public FileConfig() {
        setBoost(1.0f);
    }

    @Override
    public String getDocumentBoost() {
        return getBoost().toString();
    }

    @Override
    public String getIndexingTarget(final String input) {

    private static final String LOGGING_PROPERTIES = "logging.properties";

    private static final String FESS_CONTEXT_PATH = "fess.context.path";

    private static final String FESS_PORT = "fess.port";

    private static final String FESS_TEMP_PATH = "fess.temp.path";

    private static final String FESS_VAR_PATH = "fess.var.path";

    private static final String FESS_WEBAPP_PATH = "fess.webapp.path";

    Entry<String, String>[] array = (Entry<String, String>[]) new Entry<?, ?>[entries.length];
    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 Map<String, String> create(Entry<String, String>[] entries);

  @Override
  @SuppressWarnings("unchecked")

    }

    public List<String> getWordList(final SearchRequestType searchRequestType, final String seed, final String[] tags, final String[] roles,
            final String[] fields, final String[] excludes) {
        final String baseSeed = seed != null ? seed : fessConfig.getSuggestPopularWordSeed();
        final String[] baseTags = tags != null ? tags : fessConfig.getSuggestPopularWordTagsAsArray();

    return string || "";
  }-*/;

  @JsMethod
  static native String emptyToNull(@Nullable String string) /*-{
    return string || null;
  }-*/;

  static CommonPattern compilePattern(String pattern) {
    throw new UnsupportedOperationException();
  }

  static boolean patternCompilerIsPcreLike() {
    throw new UnsupportedOperationException();
  }

  private Platform() {}

        return storage.put(key, property[1]);
    }

    public String put(String key, List<String> commentLines, String value) {
        commentLines = new ArrayList<>(commentLines);
        this.layout.put(key, new Layout(commentLines, null));
        return storage.put(key, value);
    }

    public String put(String key, String comment, String value) {
        return put(key, Collections.singletonList(comment), value);

     */
    public static void addInterface ( String name, String syntax ) {
        INTERFACES.put(name, syntax);
    }

    private String proto;
    private Map<String, Object> options = null;
    private String server;
    private String endpoint = null;
    private UUID uuid = null;
    private int major;
    private int minor;


    DcerpcBinding ( String proto, String server ) {
        this.proto = proto;