&& !ListenableFuture.class.getName().equals(name)) {
              synchronized (loadedClasses) {
                Class<?> toReturn = loadedClasses.get(name);
                if (toReturn == null) {
                  toReturn = super.findClass(name);
                  loadedClasses.put(name, toReturn);
                }
                return toReturn;
              }
            }

 *
 * <p>The views returned by {@link #column}, {@link #columnKeySet()}, and {@link #columnMap()} have
 * iterators that don't support {@code remove()}. Otherwise, all optional operations are supported.
 * Null row keys, columns keys, and values are not supported.
 *
 * <p>Lookups by row key are often faster than lookups by column key, because the data is stored in

    }

    /**
     * Creates a new instance of {@link SAXParser} using the specified {@link SAXParserFactory}.
     *
     * @param factory
     *            {@link SAXParserFactory}. Must not be {@literal null}.
     * @return A new instance of {@link SAXParser}.
     */
    public static SAXParser newSAXParser(final SAXParserFactory factory) {
        assertArgumentNotNull("factory", factory);

        try {

     *
     * @param token the token bytes
     * @throws PACDecodingException if token decoding fails
     */
    public KerberosToken(byte[] token) throws PACDecodingException {
        this(token, null);
    }

    /**
     * Constructs a KerberosToken from token bytes with decryption keys.
     *
     * @param token the token bytes
     * @param keys array of Kerberos keys for decryption

     * @return The identifier of the model from which the problem originated or an empty string if unknown, never
     *         {@code null}.
     */
    @Nonnull
    String getModelId();

    /**
     * Gets the applicable maven version/validation level of this problem
     * @return The version, never {@code null}.
     */
    @Nonnull
    Version getVersion();

    }

    @Test
    @DisplayName("Should handle null negotiate contexts")
    void testNullNegotiateContexts() throws Exception {
        // Given
        setResponseAsReceived(response);
        setPrivateField(response, "dialectRevision", 0x0311);

        NegotiateContextResponse[] contexts = new NegotiateContextResponse[] { null, createValidPreauthResponse(), null };

    }

    // Test validation with valid cron expressions
    public void test_validCronExpressions() {
        TestBean bean = new TestBean();

        // Test null value (should be valid)
        bean.setCronExpression(null);
        Set<ConstraintViolation<TestBean>> violations = validator.validate(bean);
        assertTrue(violations.isEmpty());

        // Test empty string (should be valid)

        assertEquals(0, response.getDataCount());
    }

    @Test
    @DisplayName("Test entry management")
    void testEntryManagement() {
        // Test with null entries
        response.setResults(null);
        assertNull(response.getResults());

        // Test with empty entries
        FileEntry[] emptyEntries = new FileEntry[0];
        response.setResults(emptyEntries);

        default -> "0x" + Hexdump.toHexString(questionType, 4);
        };
        recordTypeString = switch (recordType) {
        case A -> "A";
        case NS -> "NS";
        case NULL -> "NULL";
        case NB -> "NB";
        case NBSTAT -> "NBSTAT";
        default -> "0x" + Hexdump.toHexString(recordType, 4);
        };

      Collection<Subscriber> eventMethodsInListener = entry.getValue();

      CopyOnWriteArraySet<Subscriber> eventSubscribers = subscribers.get(eventType);

      if (eventSubscribers == null) {
        CopyOnWriteArraySet<Subscriber> newSet = new CopyOnWriteArraySet<>();
        eventSubscribers =
            MoreObjects.firstNonNull(subscribers.putIfAbsent(eventType, newSet), newSet);
      }