assertNull(map.putInstance(int.class, 0));
    assertNull(map.putInstance(Integer.class, 1));
    assertEquals(2, map.size());

    assertEquals(0, (int) map.getInstance(int.class));
    assertEquals(1, (int) map.getInstance(Integer.class));

    assertEquals(0, (int) map.putInstance(int.class, null));
    assertEquals(1, (int) map.putInstance(Integer.class, null));

    assertNull(map.putInstance(int.class, 0));
    assertNull(map.putInstance(Integer.class, 1));
    assertEquals(2, map.size());

    assertEquals(0, (int) map.getInstance(int.class));
    assertEquals(1, (int) map.getInstance(Integer.class));

    assertEquals(0, (int) map.putInstance(int.class, null));
    assertEquals(1, (int) map.putInstance(Integer.class, null));

    assertNull(map.getInstance(int.class));

   * of the class's supertypes.
   *
   * <p>{@code putInstance(Foo.class, foo)} is equivalent to {@code
   * putInstance(TypeToken.of(Foo.class), foo)}.
   *
   * @return the value previously associated with this class (possibly {@code null}), or {@code
   *     null} if there was no previous entry.
   */
  @CanIgnoreReturnValue
  @CheckForNull
  <T extends B> T putInstance(Class<@NonNull T> type, @ParametricNullness T value);

  /**

   * of the class's supertypes.
   *
   * <p>{@code putInstance(Foo.class, foo)} is equivalent to {@code
   * putInstance(TypeToken.of(Foo.class), foo)}.
   *
   * @return the value previously associated with this class (possibly {@code null}), or {@code
   *     null} if there was no previous entry.
   */
  @CanIgnoreReturnValue
  @CheckForNull
  <T extends B> T putInstance(Class<@NonNull T> type, @ParametricNullness T value);

  /**

  }

  @Override
  @CanIgnoreReturnValue
  @CheckForNull
  public <T extends B> T putInstance(Class<@NonNull T> type, @ParametricNullness T value) {
    return trustedPut(TypeToken.of(type), value);
  }

  @Override
  @CanIgnoreReturnValue
  @CheckForNull
  public <T extends B> T putInstance(TypeToken<@NonNull T> type, @ParametricNullness T value) {
    return this.<T>trustedPut(type.rejectTypeVariables(), value);

  }

  @Override
  @CanIgnoreReturnValue
  @CheckForNull
  public <T extends B> T putInstance(Class<@NonNull T> type, @ParametricNullness T value) {
    return trustedPut(TypeToken.of(type), value);
  }

  @Override
  @CanIgnoreReturnValue
  @CheckForNull
  public <T extends B> T putInstance(TypeToken<@NonNull T> type, @ParametricNullness T value) {
    return this.<T>trustedPut(type.rejectTypeVariables(), value);

/**
 * A map, each entry of which maps a Java <a href="http://tinyurl.com/2cmwkz">raw type</a> to an
 * instance of that type. In addition to implementing {@code Map}, the additional type-safe
 * operations {@link #putInstance} and {@link #getInstance} are available.
 *
 * <p>Like any other {@code Map<Class, Object>}, this map may contain entries for primitive types,
 * and a primitive type and its corresponding wrapper type may map to different values.

   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  @CheckForNull
  public <T extends B> T putInstance(Class<T> type, T value) {
    throw new UnsupportedOperationException();
  }

  Object readResolve() {
    return isEmpty() ? of() : this;
  }

   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  @CheckForNull
  public <T extends B> T putInstance(Class<T> type, T value) {
    throw new UnsupportedOperationException();
  }

  Object readResolve() {
    return isEmpty() ? of() : this;
  }

      cast(entry.getKey(), entry.getValue());
    }
    super.putAll(copy);
  }

  @CanIgnoreReturnValue
  @Override
  @CheckForNull
  public <T extends B> T putInstance(Class<@NonNull T> type, @ParametricNullness T value) {
    return cast(type, put(type, value));
  }

  @Override
  @CheckForNull
  public <T extends @NonNull B> T getInstance(Class<T> type) {