int expectedHash =
            (entry.getKey() == null ? 0 : entry.getKey().hashCode())
                ^ (entry.getValue() == null ? 0 : entry.getValue().hashCode());
        assertEquals(expectedHash, entry.hashCode());
        expectedEntrySetHash += expectedHash;
      }
      assertEquals(expectedEntrySetHash, entrySet.hashCode());
      assertTrue(entrySet.containsAll(new HashSet<Entry<K, V>>(entrySet)));

        final Method hashCodeMethod = ClassUtil.getMethod(getClass(), "hashCode");
        assertThat(MethodUtil.isEqualsMethod(hashCodeMethod), is(not(true)));
    }

    /**
     *
     */
    @Test
    public void testIsHashCodeMethod() {
        final Method hashCodeMethod = ClassUtil.getMethod(getClass(), "hashCode");
        assertThat(MethodUtil.isHashCodeMethod(hashCodeMethod), is(true));

        }
        this.addr = addr;
    }

    /**
     * Return the IP address of this address as a 32 bit integer.
     */

    @Override
    public int hashCode() {
        return addr.hashCode();
    }

    /**
     * Compare two addresses for equality. Two <code>UniAddress</code>s are equal
     * if they are both <code>UniAddress</code>' and refer to the same IP address.
     */

      RangeSet<?> other = (RangeSet<?>) obj;
      return this.asRanges().equals(other.asRanges());
    }
    return false;
  }

  @Override
  public final int hashCode() {
    return asRanges().hashCode();
  }

  @Override
  public final String toString() {
    return asRanges().toString();
  }

    Type type = capture();
    checkArgument(type instanceof TypeVariable, "%s should be a type variable.", type);
    this.typeVariable = (TypeVariable<?>) type;
  }

  @Override
  public final int hashCode() {
    return typeVariable.hashCode();
  }

  @Override
  public final boolean equals(@Nullable Object o) {
    if (o instanceof TypeParameter) {
      TypeParameter<?> that = (TypeParameter<?>) o;

      ComparatorOrdering<?> that = (ComparatorOrdering<?>) object;
      return this.comparator.equals(that.comparator);
    }
    return false;
  }

  @Override
  public int hashCode() {
    return comparator.hashCode();
  }

  @Override
  public String toString() {
    return comparator.toString();
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

      }
    }
  }

  override fun equals(other: Any?): Boolean =
    other === this ||
      (other is BasicTrustRootIndex && other.subjectToCaCerts == subjectToCaCerts)

  override fun hashCode(): Int = subjectToCaCerts.hashCode()

   * Content-Type header.
   */
  override fun toString(): String = mediaType

  override fun equals(other: Any?): Boolean = other is MediaType && other.mediaType == mediaType

  override fun hashCode(): Int = mediaType.hashCode()

  companion object {
    private const val TOKEN = "([a-zA-Z0-9-!#$%&'*+.^_`{|}~]+)"
    private const val QUOTED = "\"([^\"]*)\""
    private val TYPE_SUBTYPE = Regex("$TOKEN/$TOKEN")

    void testEquals() {
        ChannelInfo other = new ChannelInfo("test-channel", mockTransport, localInterface, remoteInterface);
        assertEquals(channelInfo, other);
        assertEquals(channelInfo.hashCode(), other.hashCode());

        ChannelInfo different = new ChannelInfo("different-channel", mockTransport, localInterface, remoteInterface);
        assertNotEquals(channelInfo, different);
    }

    @Test

  /** Instantiable predicate with reasonable hashCode() and equals() methods. */
  static class IsOdd implements Predicate<@Nullable Integer>, Serializable {
    @GwtIncompatible @J2ktIncompatible     private static final long serialVersionUID = 0x150ddL;

    @Override
    public boolean apply(@Nullable Integer i) {
      return (i.intValue() & 1) == 1;
    }

    @Override
    public int hashCode() {
      return 0x150dd;
    }