return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if origin := w.Header().Get("Access-Control-Allow-Origin"); origin == "null" {
			// This is a workaround change to ensure that "Origin: null"
			// incoming request to a response back as "*" instead of "null"
			w.Header().Set("Access-Control-Allow-Origin", "*")
		}
		if globalDNSConfig == nil || !globalBucketFederation ||

        final OptionalThing<FessUserBean> userBean = getUserBean();
        activityHelper.logout(userBean);
        final String redirectUrl = userBean.map(user -> ComponentUtil.getSsoManager().logout(user)).orElse(null);
        fessLoginAssist.logout();
        userInfoHelper.deleteUserCodeFromCookie(request);
        if (StringUtil.isNotBlank(redirectUrl)) {
            return HtmlResponse.fromRedirectPathAsIs(redirectUrl);
        }

  @Override
  public UnmodifiableIterator<E> iterator() {
    return Iterators.unmodifiableIterator(delegate.iterator());
  }

  @Override
  public boolean contains(@Nullable Object object) {
    return object != null && delegate.contains(object);
  }

  @Override
  public boolean containsAll(Collection<?> targets) {
    return delegate.containsAll(targets);
  }

  @Override
  public int size() {

        buf.append(cause);
        if (cause instanceof SAXParseException) {
            final SAXParseException e = (SAXParseException) cause;
            if (e.getSystemId() != null) {
                buf.append(" at ").append(e.getSystemId());
            }
            final int lineNumber = e.getLineNumber();
            final int columnNumber = e.getColumnNumber();

            throw new IOException("unexpected EOF reading netbios retarget session response");
        }
        final int addr = readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        retargetAddress = new NbtAddress(null, addr, false, NbtAddress.B_NODE);
        int retargetPort = readInt2(buffer, bufferIndex);
        return length;
    }

class DefaultProblemCollector implements ProblemCollector {

    private final List<Problem> problems;

    private String source;

    DefaultProblemCollector(List<Problem> problems) {
        this.problems = (problems != null) ? problems : new ArrayList<>();
    }

    @Override
    public List<Problem> getProblems() {
        return problems;
    }

    @Override
    public void setSource(String source) {

        source = new StringSource("Hello World!", "LOCATION");
        assertEquals("LOCATION", source.getLocation());
    }

    @Test
    void testGetContent() {
        StringSource source = new StringSource(null);
        assertEquals("", source.getContent());

        source = new StringSource("Hello World!", "LOCATION");
        assertEquals("Hello World!", source.getContent());
    }

        assertEquals(fugaAuth, smbAuthenticationHolder.get("smb1://fuga/text.txt"));
        assertEquals(fooAuth, smbAuthenticationHolder.get("smb1://foo:1000/text.txt"));

        assertNull(smbAuthenticationHolder.get(null));
        assertNull(smbAuthenticationHolder.get(""));
        assertNull(smbAuthenticationHolder.get(" "));
        assertNull(smbAuthenticationHolder.get("smb1://"));

    assertThat(client.webSocket!!.send("Hello!")).isFalse()
  }

  @Test
  fun clientCloseWith0Fails() {
    assertFailsWith<IllegalArgumentException> {
      client.webSocket!!.close(0, null)
    }.also { expected ->
      assertThat("Code must be in range [1000,5000): 0")
        .isEqualTo(expected.message)
    }
  }

  @Test
  fun afterSocketClosedPingFailsWebSocket() {

        SocketInputStream sis = new SocketInputStream(in);

        // Should throw NullPointerException when reading with null array
        assertThrows(NullPointerException.class, () -> sis.read((byte[]) null));
    }

    @ParameterizedTest
    @ValueSource(longs = { 0L, -1L, -10L })
    @DisplayName("Skip returns 0 for zero or negative values")