}

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testConstants_charset() throws Exception {
    for (Field field : getConstantFields()) {
      Optional<Charset> charset = ((MediaType) field.get(null)).charset();
      if (field.getName().endsWith("_UTF_8")) {
        assertThat(charset).hasValue(UTF_8);
      } else {
        assertThat(charset).isAbsent();
      }
    }
  }

  @J2ktIncompatible

      Class<?> declaringClass = constructor.getDeclaringClass();
      if (declaringClass.getEnclosingConstructor() != null) {
        // Enclosed in a constructor, needs hidden this
        return true;
      }
      Method enclosingMethod = declaringClass.getEnclosingMethod();
      if (enclosingMethod != null) {
        // Enclosed in a method, if it's not static, must need hidden this.

  }

  public void testEncloseAll_nullValue() {
    List<@Nullable Integer> nullFirst = Lists.newArrayList(null, 0);
    assertThrows(NullPointerException.class, () -> Range.encloseAll((List<Integer>) nullFirst));
    List<@Nullable Integer> nullNotFirst = Lists.newArrayList(0, null);
    assertThrows(NullPointerException.class, () -> Range.encloseAll((List<Integer>) nullNotFirst));
  }

   * @return an array containing the same values as {@code collection}, in the same order, converted
   *     to primitives
   * @throws NullPointerException if {@code collection} or any of its elements is null
   */
  public static boolean[] toArray(Collection<Boolean> collection) {
    if (collection instanceof BooleanArrayAsList) {
      return ((BooleanArrayAsList) collection).toBooleanArray();
    }

    assertThrows(UnsupportedOperationException.class, () -> sortedMultiset.pollFirstEntry());
  }

  @CollectionSize.Require(SEVERAL)
  public void testLower() {
    resetWithHole();
    assertEquals(null, sortedMultiset.headMultiset(a.getElement(), OPEN).lastEntry());
    assertEquals(a, sortedMultiset.headMultiset(b.getElement(), OPEN).lastEntry());
    assertEquals(a, sortedMultiset.headMultiset(c.getElement(), OPEN).lastEntry());

   * @return an array containing the same values as {@code collection}, in the same order, converted
   *     to primitives
   * @throws NullPointerException if {@code collection} or any of its elements is null
   */
  public static boolean[] toArray(Collection<Boolean> collection) {
    if (collection instanceof BooleanArrayAsList) {
      return ((BooleanArrayAsList) collection).toBooleanArray();
    }

    #            ; production = $$baseDir$$/production/resources
    #        }
    #        ; diffIgnoredKeyList = list:{} ; maskedKeyList = list:{} ; isEnvOnlyFloatLeft = false
    #        ; extendsPropRequest = null
    #        ; isCheckImplicitOverride = false
    #    }
    #}
    # - - - - - - - - - -/
}

    tester.testFailedFuture("failure");
  }

  public void testSetFailureNull() throws Exception {
    assertThrows(NullPointerException.class, () -> future.setException(null));
    assertFalse(future.isDone());
    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testCancel() throws Exception {

                            ctx.get(), {x.get()}, absl::MakeSpan(outputs),
                            /*use_function=*/!std::get<2>(GetParam()));
  ASSERT_EQ(error::INVALID_ARGUMENT, s.code());
  ASSERT_EQ(
      "Provided null gradient_function for 'Neg'.\nIf the intent is to treat "
      "this op as non-differentiable consider using RegisterNotDifferentiable "
      "or NotDifferentiableGradientFunction.",
      s.message());

    }

    @Override
    public boolean isErrorEnabled() {
        return logger.isErrorEnabled();
    }

    private String toString(CharSequence content) {
        return content != null ? content.toString() : "";
    }