/** {@inheritDoc} */
    public boolean equals(Object o) {
        if (o == this) {
            return true;
        }

        if (!(o instanceof Artifact)) {
            return false;
        }

        Artifact a = (Artifact) o;

        if (!a.getGroupId().equals(getGroupId())) {
            return false;
        } else if (!a.getArtifactId().equals(getArtifactId())) {
            return false;

    }

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

        }

        final String[] cmds = stream(commands).get(stream -> stream.map(s -> {
            if ("$USERNAME".equals(s)) {
                return username;
            }
            if ("$PASSWORD".equals(s)) {
                return password;
            }
            return s;
        }).toArray(n -> new String[n]));

    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new MailingList().equals(null));

        new MailingList().equals(new MailingList());
    }

    @Test
    void testEqualsIdentity() {
        MailingList thing = new MailingList();
        assertTrue(thing.equals(thing));
    }

    @Test
    void testToStringNullSafe() {
        assertNotNull(new MailingList().toString());

   * {@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

        return p1.isEnabled() == p2.isEnabled() && Objects.equals(p1.getChecksumPolicy(), p2.getChecksumPolicy());
    }

    private static boolean repositoryEquals(RemoteRepository r1, RemoteRepository r2) {
        if (r1 == r2) {
            return true;
        }

        return Objects.equals(r1.getId(), r2.getId())
                && Objects.equals(r1.getUrl(), r2.getUrl())

  }

  @Override
  public boolean equals(@CheckForNull Object obj) {
    if (obj == this) {
      return true;
    }
    if (obj instanceof FunctionalEquivalence) {
      FunctionalEquivalence<?, ?> that = (FunctionalEquivalence<?, ?>) obj;
      return function.equals(that.function) && resultEquivalence.equals(that.resultEquivalence);
    }
    return false;
  }

  @Override

  }

  private MinimalSet(Class<? super @NonNull E> type, E... contents) {
    super(type, true, contents);
  }

  /*
   * equals() and hashCode() are more specific in the Set contract.
   */

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof Set) {
      Set<?> that = (Set<?>) object;
      return (this.size() == that.size()) && this.containsAll(that);
    }

    } catch (UnsupportedOperationException e) {
      return;
    }

    // Explicitly call `equals`; `assertEquals` might return fast
    assertTrue(map.equals(map));
    assertTrue(makePopulatedMap().equals(map));
    assertFalse(map.equals(emptyMap()));
    // no-inspection ObjectEqualsNull
    assertFalse(map.equals(null));
  }

  public void testEqualsForLargerMap() {
    if (!supportsPut) {
      return;

    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        ParameterMetaData that = (ParameterMetaData) o;
        return Objects.equals(name, that.name) &&
            Objects.equals(type, that.type);
    }

    @Override