// setToTest should throw when it calls equals(), or equals is called on it, except for itself
    assertThat(setToTest).isEqualTo(setToTest);
    assertThrows(IllegalStateException.class, () -> setToTest.equals(wrappedSet));
    assertThrows(IllegalStateException.class, () -> setToTest.equals(copyOfWrappedSet));
    assertThrows(IllegalStateException.class, () -> setToTest.equals(copyOfModifiedSet));

            while (resources.hasMoreElements()) {
                final URL resource = resources.nextElement();
                logger.debug("loading {}", resource);
                if ("file".equals(resource.getProtocol())) {
                    final File directory = new File(resource.getFile());
                    if (directory.exists() && directory.isDirectory()) {

        }

        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }
            if (!(obj instanceof GAKey)) {
                return false;
            }

            GAKey other = (GAKey) obj;
            return Objects.equals(artifactId, other.artifactId) && Objects.equals(groupId, other.groupId);
        }
    }

        assertTrue(synonymItem1.equals(synonymItem1));
        assertTrue(synonymItem1.equals(new SynonymItem(1, new String[] { "A", "a" }, new String[] { "B", "b" })));
        assertTrue(synonymItem1.equals(new SynonymItem(2, new String[] { "A", "a" }, new String[] { "B", "b" })));
        assertFalse(synonymItem1.equals(new SynonymItem(2, new String[] { "A", "a" }, new String[] { "B", })));

      hashCode = ~~hashCode;
      // needed to deal with GWT integer overflow
    }
    return hashCode;
  }

  /** An implementation of {@link List#equals(Object)}. */
  static boolean equalsImpl(List<?> thisList, @CheckForNull Object other) {
    if (other == checkNotNull(thisList)) {
      return true;
    }
    if (!(other instanceof List)) {

    }


    @Override
    public boolean equals ( Object obj ) {
        Name n;

        if ( ! ( obj instanceof Name ) ) {
            return false;
        }
        n = (Name) obj;
        if ( this.scope == null && n.scope == null ) {
            return this.name.equals(n.name) && this.hexCode == n.hexCode;
        }

    assertFalse(control("foo", 1).equals(entry("foo", 2)));
    assertFalse(entry("foo", 1).equals(control("bar", 1)));
    assertFalse(entry("foo", 1).equals(new Object()));
    assertFalse(entry("foo", 1).equals(null));
  }

  public void testEqualsNull() {
    assertEquals(control(NE, 1), entry(NE, 1));
    assertFalse(control(NE, 1).equals(entry(NE, 2)));
    assertFalse(entry(NE, 1).equals(control("bar", 1)));

            final Object accessType = r.getAttribute(Constants.SEARCH_LOG_ACCESS_TYPE);
            if (Constants.SEARCH_LOG_ACCESS_TYPE_JSON.equals(accessType)) {
                return processJsonSearchPreference(r, query);
            }
            if (Constants.SEARCH_LOG_ACCESS_TYPE_GSA.equals(accessType)) {
                return processGsaSearchPreference(r, query);
            }
            return null;

                if (sessionId.equals(urlQueue.getSessionId()) && url.equals(urlQueue.getUrl())) {
                    return true;
                }
            }
            for (final UrlQueue<String> urlQueue : waitingQueue) {
                if (sessionId.equals(urlQueue.getSessionId()) && url.equals(urlQueue.getUrl())) {
                    return true;
                }

 * equivalence of instances.
 *
 * <p><b>Warning:</b> The comparison must be <i>consistent with equals</i> as explained by the
 * {@link Comparable} class specification. Otherwise, the resulting multiset will violate the {@link
 * java.util.Collection} contract, which is specified in terms of {@link Object#equals}.
 *
 * <p>See the Guava User Guide article on <a href=