* exception's creation.
   *
   * @since 19.0
   * @deprecated This method is equivalent to {@link Throwable#getStackTrace()} on JDK versions past
   *     JDK 8 and on all Android versions. Use {@link Throwable#getStackTrace()} directly, or where
   *     possible use the {@code java.lang.StackWalker.walk} method introduced in JDK 9.
   */
  @Deprecated
  @J2ktIncompatible

   * exception's creation.
   *
   * @since 19.0
   * @deprecated This method is equivalent to {@link Throwable#getStackTrace()} on JDK versions past
   *     JDK 8 and on all Android versions. Use {@link Throwable#getStackTrace()} directly, or where
   *     possible use the {@code java.lang.StackWalker.walk} method introduced in JDK 9.
   */
  @Deprecated
  @J2ktIncompatible

   * so that we get partial compile-time checking.)
   *
   * <p>This workaround should be removed at a distant future time when we no longer support Java
   * versions earlier than 8.
   */
  @SuppressWarnings("removal") // b/318391980
  private static final class TypeVariableInvocationHandler implements InvocationHandler {

    Collection<E> siblingCollection = new ArrayList<>();
    siblingCollection.add(sampleElement);

    Collection<E> copy = new ArrayList<>();
    // Avoid copy.addAll(collection), which runs afoul of an Android bug in older versions:
    // http://b.android.com/72073 http://r.android.com/98929
    Iterators.addAll(copy, collection.iterator());

    try {
      collection.add(sampleElement);

 *   <li>{@code java.util.Optional} has the additional methods {@code ifPresent}, {@code filter},
 *       {@code flatMap}, and {@code orElseThrow}.
 *   <li>{@code java.util} offers the primitive-specialized versions {@code OptionalInt}, {@code
 *       OptionalLong} and {@code OptionalDouble}, the use of which is recommended; Guava does not
 *       have these.
 * </ul>
 *

    Collection<E> siblingCollection = new ArrayList<>();
    siblingCollection.add(sampleElement);

    Collection<E> copy = new ArrayList<>();
    // Avoid copy.addAll(collection), which runs afoul of an Android bug in older versions:
    // http://b.android.com/72073 http://r.android.com/98929
    Iterators.addAll(copy, collection.iterator());

    try {
      collection.add(sampleElement);

 * {@link #writeTo} and {@link #readFrom} methods. Both serialized forms will continue to be
 * supported by future versions of this library. However, serial forms generated by newer versions
 * of the code may not be readable by older versions of the code (e.g., a serialized Bloom filter
 * generated today may <i>not</i> be readable by a binary that was compiled 6 months ago).
 *

            failFormat("expected divide(%s, %s, %s) = %s; got %s", p, q, mode, expected, actual);
          }
        }
      }
    }
  }

  @GwtIncompatible // TODO
  @AndroidIncompatible // Bug in older versions of Android we test against, since fixed.
  public void testDivNonZeroExact() {
    for (long p : NONZERO_LONG_CANDIDATES) {
      for (long q : NONZERO_LONG_CANDIDATES) {
        boolean expectedSuccess = (p % q) == 0L;

  @Override
  public void testNullPointerInstance() {
    if (isAndroid()) {
      /*
       * NPT fails under the old versions of Android we test under because it performs reflection on
       * ImmutableTable, which declares static methods that refer to Collector, which is unavailable
       * under such versions.
       *
       * We use a runtime check here instead of @AndroidIncompatible: @AndroidIncompatible operates

  final Segment<K, V, E, S>[] newSegmentArray(int ssize) {
    return (Segment<K, V, E, S>[]) new Segment<?, ?, ?, ?>[ssize];
  }

  // Inner Classes

  /**
   * Segments are specialized versions of hash tables. This subclass inherits from ReentrantLock
   * opportunistically, just to simplify some locking and avoid separate construction.
   */
  @SuppressWarnings("serial") // This class is never serialized.