// Different input
        assertFalse(item1.equals(item3));

        // Same id and input
        assertTrue(item1.equals(item4));

        // Null object
        assertFalse(item1.equals(null));

        // Different class
        assertFalse(item1.equals("word"));

        // Symmetry
        assertTrue(item1.equals(item2));
        assertTrue(item2.equals(item1));
    }

    }

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

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof DummyHandler) {
        DummyHandler that = (DummyHandler) obj;
        return identity().equals(that.identity());
      } else {
        return false;
      }
    }

    private DummyProxy identity() {

                val parameterEnd = header.delimiterOffset(';', pos, extensionEnd)
                val equals = header.delimiterOffset('=', pos, parameterEnd)
                val name = header.trimSubstring(pos, equals)
                val value =
                  if (equals < parameterEnd) {
                    header.trimSubstring(equals + 1, parameterEnd).removeSurrounding("\"")
                  } else {
                    null

   * {@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

      !"Connection".equals(fieldName, ignoreCase = true) &&
        !"Keep-Alive".equals(fieldName, ignoreCase = true) &&
        !"Proxy-Authenticate".equals(fieldName, ignoreCase = true) &&
        !"Proxy-Authorization".equals(fieldName, ignoreCase = true) &&
        !"TE".equals(fieldName, ignoreCase = true) &&
        !"Trailers".equals(fieldName, ignoreCase = true) &&

        hash = hash * 31 + toInvert.hashCode();
        return hash;
    }

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

        if (obj instanceof InversionArtifactFilter other) {
            return toInvert.equals(other.toInvert);
        } else {
            return false;
        }
    }

            // Test null vs null
            assertTrue(auth1.equals(new NtlmPasswordAuthenticator("domain", "user", (String) null)));

            // Test null vs empty
            assertFalse(auth1.equals(auth2));

            // Test null vs password
            assertFalse(auth1.equals(auth3));

            // Test empty vs password
            assertFalse(auth2.equals(auth3));

    @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) {

                        && Objects.equals(extension, that.extension)
                        && Objects.equals(type, that.type)
                        && Objects.equals(coordinateString, that.coordinateString)
                        && Objects.equals(scope, that.scope)
                        && Objects.equals(exclusions, that.exclusions);
            }

            @Override
            public int hashCode() {

    if (JAVA_IO_TMPDIR.value().equals("/sdcard")) {
      assertThrows(IOException.class, () -> out.write(data));
      return;
    }
    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.close();
    assertThrows(IOException.class, () -> out.write(42));

    // Verify that write had no effect
    assertTrue(Arrays.equals(data, source.read()));
    out.reset();
  }