v.getVersions().add( version );
                }
            }

            if ( "null".equals( versioning.getLastUpdated() ) )
            {
                versioning.setLastUpdated( null );
            }

            if ( "null".equals( v.getLastUpdated() ) )
            {
                v.setLastUpdated( null );
            }

    @SuppressWarnings("EqualsHashCode")
    @Override
    public boolean equals(@Nullable Object other) {
      return (other instanceof ClassWhichIsAlwaysEqualButHasDifferentHashcodes);
    }
  }

  private static class ObjectWhichIsEqualButChangesClass implements Serializable {
    private static final long serialVersionUID = 1L;

    @Override
    public boolean equals(@Nullable Object other) {

@GwtIncompatible // nottested
@NullUnmarked
public class FilteredMultimapTest extends TestCase {

  private static final Predicate<Entry<String, Integer>> ENTRY_PREDICATE =
      entry ->
          !Objects.equals(entry.getKey(), "badkey") && !Objects.equals(entry.getValue(), 55556);

  protected Multimap<String, Integer> create() {
    Multimap<String, Integer> unfiltered = HashMultimap.create();
    unfiltered.put("foo", 55556);

   * {@code C}:
   *
   * <ul>
   *   <li>If {@code C} explicitly implements {@link Object#equals}, the deserialized instance will
   *       be checked to be equal to the instance before serialization.
   *   <li>If {@code C} doesn't explicitly implement {@code equals} but instead inherits it from a
   *       superclass, no equality check is done on the deserialized instance because it's not clear

        } else if (Artifact.SCOPE_COMPILE.equals(originalScope) && Artifact.SCOPE_COMPILE.equals(inheritedScope)) {
            // added to retain compile scope. Remove if you want compile inherited as runtime
            effectiveScope = Artifact.SCOPE_COMPILE;
        } else if (Artifact.SCOPE_TEST.equals(inheritedScope)) {
            effectiveScope = Artifact.SCOPE_TEST;
        } else if (Artifact.SCOPE_PROVIDED.equals(inheritedScope)) {

        assertTrue(kuromojiItem1.equals(kuromojiItem1));
        assertTrue(kuromojiItem1.equals(new KuromojiItem(1, "t1", "s1", "r1", "p1")));
        assertTrue(kuromojiItem1.equals(new KuromojiItem(2, "t1", "s1", "r1", "p1")));
        assertFalse(kuromojiItem1.equals(new KuromojiItem(1, "T1", "s1", "r1", "p1")));
        assertFalse(kuromojiItem1.equals(new KuromojiItem(1, "t1", "S1", "r1", "p1")));

    }
  }

  private interface Equals {
    @Override
    boolean equals(@Nullable Object obj);

    @Override
    int hashCode();

    @Override
    String toString();
  }

  private static class NoDelegateToEquals implements Equals {

    private static final Function<Equals, Equals> WRAPPER =
        new Function<Equals, Equals>() {
          @Override

     */
    public boolean equals(Object other) {
        if (this == other) {
            return true;
        } else if (other instanceof ToolchainModel that) {
            return java.util.Objects.equals(this.getType(), that.getType())
                && java.util.Objects.equals(this.getProvides(), that.getProvides());
        } else {
            return false;
        }

        assertFalse(lesser.equals(t));
      }

      assertEquals(t + ".compareTo(" + t + ')', 0, t.compareTo(t));
      assertTrue(t.equals(t));

      for (int j = i + 1; j < valuesInExpectedOrder.size(); j++) {
        T greater = valuesInExpectedOrder.get(j);
        assertTrue(greater + ".compareTo(" + t + ')', greater.compareTo(t) > 0);
        assertFalse(greater.equals(t));
      }
    }
  }

    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof final SitemapUrl sitemapUrl)) {
            return false;
        }
        if (StringUtil.equals(loc, sitemapUrl.loc) && StringUtil.equals(changefreq, sitemapUrl.changefreq)