}

        @Override
        public Subject getSubject() {
            return null; // not relevant for renew() behavior
        }

        @Override
        public void refresh() throws CIFSException {
            // no-op for tests
        }

        @Override
        public boolean isGuest() {
            return false; // not guest for test purposes
        }

  @Override public synchronized void onOpen(WebSocket webSocket, Response response) {
    System.out.println("onOpen: " + response);
  }

  // TOOD(jwilson): decode incoming messages and dispatch them somewhere.
  @Override public void onMessage(WebSocket webSocket, String text) {
    System.out.println("onMessage: " + text);
  }

  @Override public void onClosing(WebSocket webSocket, int code, String reason) {

    return Multimaps.forMap(map).asMap();
  }

  @Override
  public void testEntrySetRemoveAllNullFromEmpty() {
    try {
      super.testEntrySetRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's HashMap.entrySet().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testEntrySetRetainAllNullFromEmpty() {
    try {

    private Configuration config;

    @BeforeEach
    void setUp() throws Exception {
        // Create a basic configuration for testing
        this.config = new BaseConfiguration(true);
        this.multiChannelManager = new MultiChannelManager(config);
    }

    @Test
    @DisplayName("MultiChannelManager should initialize successfully")
    void testInitialization() {
        assertNotNull(multiChannelManager);

 *
 * @author Colin Decker
 */
@NullUnmarked
public class ChecksumHashFunctionTest extends TestCase {

  public void testCrc32_equalsChecksumValue() throws Exception {
    assertChecksum(CRC_32, "");
    assertChecksum(CRC_32, "Z");
    assertChecksum(CRC_32, "foobar");
  }

  public void testAdler32_equalsChecksumValue() throws Exception {
    assertChecksum(ADLER_32, "");
    assertChecksum(ADLER_32, "Z");

    return singleton(-2);
  }

  @Override
  public void testEntrySetRemoveAllNullFromEmpty() {
    try {
      super.testEntrySetRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.entrySet().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testEntrySetRetainAllNullFromEmpty() {
    try {

    }

    public void test_resolve_hostname() throws UnknownHostException {
        IdnDnsResolver resolver = new IdnDnsResolver();

        // Test localhost hostname
        String host = "localhost";
        InetAddress[] addresses = resolver.resolve(host);
        assertNotNull(addresses);
        assertTrue(addresses.length > 0);
    }

    public void test_resolve_invalid_brackets() {

    // Simple OID format: numbers separated by dots (at least one dot)
    private static final Pattern OID_PATTERN = Pattern.compile("\\d+(?:\\.\\d+)+");

    @Test
    @DisplayName("Constant values match expected OIDs")
    void constantValues() {
        assertEquals("1.3.6.1.5.5.2", SpnegoConstants.SPNEGO_MECHANISM, "SPNEGO_MECHANISM mismatch");
        assertEquals("1.2.840.113554.1.2.2", SpnegoConstants.KERBEROS_MECHANISM, "KERBEROS_MECHANISM mismatch");

 * @author Nick Kralevich
 */
@NullUnmarked
public class SerializableTesterTest extends TestCase {
  public void testStringAssertions() {
    String original = "hello world";
    String copy = SerializableTester.reserializeAndAssert(original);
    assertEquals(original, copy);
    assertNotSame(original, copy);
  }

  public void testClassWhichDoesNotImplementEquals() {

     *
     * @param buf the string buffer containing the log message
     */
    protected void log(final StringBuilder buf) {
        statsLogger.info(buf.toString());
    }

    /**
     * Sets the name of the logger used for statistics output.
     *
     * @param loggerName the logger name to use
     */
    public void setLoggerName(final String loggerName) {
        this.loggerName = loggerName;
    }