assertNotSame(System.getProperty("java.version"), result.get("java.version"));
  }

  @J2ktIncompatible
  @GwtIncompatible // Maps.fromProperties
  @SuppressWarnings("serial") // never serialized
  public void testFromPropertiesNullKey() {
    Properties properties =
        new Properties() {
          @Override
          public Enumeration<?> propertyNames() {

    assertNotSame(System.getProperty("java.version"), result.get("java.version"));
  }

  @J2ktIncompatible
  @GwtIncompatible // Maps.fromProperties
  @SuppressWarnings("serial") // never serialized
  public void testFromPropertiesNullKey() {
    Properties properties =
        new Properties() {
          @Override
          public Enumeration<?> propertyNames() {

  TF_ASSERT_OK(OpRegistry::Global()->LookUpOpDef("Add", &expected_op_def));
  string expected_serialized;
  expected_op_def->SerializeToString(&expected_serialized);
  string actual_string(reinterpret_cast<const char*>(buffer->data),
                       buffer->length);
  EXPECT_EQ(expected_serialized, actual_string);

  TF_GraphGetOpDef(graph, "MyFakeOp", buffer, status);

    adder.accept(accumulator, SomeEnum.C);
    assertThat(set).containsExactly(SomeEnum.A, SomeEnum.B);
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testImmutableEnumSet_serialized() {
    Set<SomeEnum> units = Sets.immutableEnumSet(SomeEnum.D, SomeEnum.B);

    assertThat(units).containsExactly(SomeEnum.B, SomeEnum.D).inOrder();

 *
 * <p>The caches produced by {@code CacheBuilder} are serializable, and the deserialized caches
 * retain all the configuration properties of the original cache. Note that the serialized form does
 * <i>not</i> include cache contents, but only configuration.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/CachesExplained">caching</a> for a higher-level

 * that it is serializable and offers numerous additional utility methods.
 *
 * @author Bob Lee
 * @author Sven Mawson
 * @author Ben Yu
 * @since 12.0
 */
@SuppressWarnings("serial") // SimpleTypeToken is the serialized form.
@ElementTypesAreNonnullByDefault
public abstract class TypeToken<T> extends TypeCapture<T> implements Serializable {

  private final Type runtimeType;