/**
   * Registers all subscriber methods on {@code object} to receive events.
   *
   * @param object object whose subscriber methods should be registered.
   */
  public void register(Object object) {
    subscribers.register(object);
  }

  /**
   * Unregisters all subscriber methods on a registered {@code object}.
   *
   * @param object object whose subscriber methods should be unregistered.

    }

    return false;
  }

  @Override
  public boolean containsEntry(@Nullable Object key, @Nullable Object value) {
    Collection<V> collection = asMap().get(key);
    return collection != null && collection.contains(value);
  }

  @CanIgnoreReturnValue
  @Override
  public boolean remove(@Nullable Object key, @Nullable Object value) {
    Collection<V> collection = asMap().get(key);

    SettableFuture<Object> async = SettableFuture.create();
    SettableFuture<Object> inner = SettableFuture.create();
    async.setFuture(inner);
    async.cancel(false);
    assertTrue(inner.isCancelled());
    assertFalse(inner.wasInterrupted());
    assertThrows(CancellationException.class, () -> inner.get());
  }

  public void testCancel_beforeSet() throws Exception {

        // Create a mock DfsReferralData object
        DfsReferralData mockData = mock(DfsReferralData.class);

        // Create a DfsReferral instance with the mock data
        DfsReferral dfsReferral = new DfsReferral(mockData);

        // Verify that getData() returns the same mock data object
        assertEquals(mockData, dfsReferral.getData(), "getData() should return the DfsReferralData object passed to the constructor.");
    }

   */
  MURMUR128_MITZ_32() {
    @Override
    public <T extends @Nullable Object> boolean put(
        @ParametricNullness T object,
        Funnel<? super T> funnel,
        int numHashFunctions,
        LockFreeBitArray bits) {
      long bitSize = bits.bitSize();
      long hash64 = Hashing.murmur3_128().hashObject(object, funnel).asLong();
      int hash1 = (int) hash64;
      int hash2 = (int) (hash64 >>> 32);

        assertNotNull(avFlags, "AvFlags object should not be null");
        assertEquals(0x04030201, avFlags.getFlags(), "Flags should match the raw bytes (little-endian)");

        // Test with zero
        byte[] zeroBytes = new byte[] { 0x00, 0x00, 0x00, 0x00 };
        AvFlags zeroAvFlags = new AvFlags(zeroBytes);
        assertNotNull(zeroAvFlags, "AvFlags object should not be null for zero bytes");

        // Test with supported document type
        Map<String, Object> docMap = new HashMap<>();
        docMap.put("mimetype", "application/pdf");
        assertTrue(thumbnailGenerator.isTarget(docMap));
    }

    public void test_isTarget_withUnsupportedMimeType() {
        // Test with unsupported document type
        Map<String, Object> docMap = new HashMap<>();
        docMap.put("mimetype", "application/unknown");

    SettableFuture<Object> future2 = SettableFuture.create();

    // A more organic OOM from a toString implementation
    Object object =
        new Object() {
          @Override
          public String toString() {
            return new String(new char[50_000]);
          }
        };
    List<Object> list = Collections.singletonList(object);
    for (int i = 0; i < 10; i++) {

/**
 * An unhashable object to be used in testing as values in our collections.
 *
 * @author Regina O'Dell
 */
@GwtCompatible
public class UnhashableObject implements Comparable<UnhashableObject> {
  private final int value;

  public UnhashableObject(int value) {
    this.value = value;
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof UnhashableObject) {

        if (source == null) {
            return target;
        } else if (target == null) {
            return source;
        }

        Map<Object, InputLocation> locations;
        Map<Object, InputLocation> sourceLocations = source.locations;
        Map<Object, InputLocation> targetLocations = target.locations;
        if (sourceLocations == null) {
            locations = targetLocations;