*
   * <p>The multimap is not threadsafe when any concurrent operations update the multimap, even if
   * {@code map} and the instances generated by {@code factory} are. Concurrent read operations will
   * work correctly. To allow concurrent update operations, wrap the multimap with a call to {@link
   * #synchronizedMultimap}.
   *

    }
  }

  /**
   * Returns an unmodifiable view of the specified table. This method allows modules to provide
   * users with "read-only" access to internal tables. Query operations on the returned table "read
   * through" to the specified table, and attempts to modify the returned table, whether direct or
   * via its collection views, result in an {@code UnsupportedOperationException}.
   *

     *
     * <ul>
     *   <li>If this field's value == currentThread, we know that it's up to date, because write
     *       operations in a thread always happen-before subsequent read operations in the same
     *       thread
     *   <li>If this field's value == null because of unsafe publication, we know that it isn't the

          assertTrue(entries.add(current));
          if (prev != null) {
            assertSame(prev, current.getPreviousInAccessQueue());
            assertSame(prev.getNextInAccessQueue(), current);
            // read accesses may be slightly misordered
            assertTrue(
                prev.getAccessTime() <= current.getAccessTime()
                    || prev.getAccessTime() - current.getAccessTime() < 1000);
          }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testElementSetClear() {
    getMultiset().elementSet().clear();
    assertEmpty(getMultiset());
  }

  /**
   * Returns {@link Method} instances for the read tests that assume multisets support duplicates so
   * that the test of {@code Multisets.forSet()} can suppress them.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection

  }

  private static final class InCompletionOrderState<T extends @Nullable Object> {
    // A happens-before edge between the writes of these fields and their reads exists, because
    // in order to read these fields, the corresponding write to incompleteOutputCount must have
    // been read.
    private boolean wasCancelled = false;
    private boolean shouldInterrupt = true;
    private final AtomicInteger incompleteOutputCount;

   * it slower than the native version.
   *
   * @param input the input bytes
   * @param offset the offset into the array at which to start reading
   * @param length the number of bytes from the input to read
   * @return a long of a concatenated 8 bytes
   */
  static long load64Safely(byte[] input, int offset, int length) {
    long result = 0;

   * set a value to {@code null} will result in a {@link NullPointerException}.
   *
   * <p>The returned list maintains the values, but not the identities, of {@code Byte} objects
   * written to or read from it. For example, whether {@code list.get(0) == list.get(0)} is true for
   * the returned list is unspecified.
   *
   * <p>The returned list is serializable.
   *
   * @param backingArray the array to back the list

     * real problem: The Entry objects are ImmutableMap entries, whose fields are all final and thus
     * safe to read even when the Entry object is unsafely published. But with a mutable graph, the
     * Entry object is likely to have a non-final value field, which is not safe to read when

     * real problem: The Entry objects are ImmutableMap entries, whose fields are all final and thus
     * safe to read even when the Entry object is unsafely published. But with a mutable graph, the
     * Entry object is likely to have a non-final value field, which is not safe to read when