chain = null;
    for (int i = 0; i < length; i++) {
      Object key = new Object();
      // TODO(b/145386688): This access should be guarded by 'this.segment', which is not currently
      // held
      chain = segment.newEntry(key, cache.hash(key), chain);
      if (i == 0) {
        head = chain;
      }
    }
  }

  @SuppressWarnings("GuardedBy")
  @Benchmark
  int time(int reps) {
    int dummy = 0;

    ReferenceEntry<Object, Object> entry = segment.getEntry(one, hash);
    ReferenceEntry<Object, Object> newEntry = segment.copyEntry(entry, null);
    table.set(index, newEntry);

    @SuppressWarnings("unchecked")
    LoadingValueReference<Object, Object> valueReference =
        (LoadingValueReference) newEntry.getValueReference();
    assertThat(valueReference.futureValue.isDone()).isFalse();
    startSignal.countDown();

    ReferenceEntry<Object, Object> entry = segment.getEntry(one, hash);
    ReferenceEntry<Object, Object> newEntry = segment.copyEntry(entry, null);
    table.set(index, newEntry);

    @SuppressWarnings("unchecked")
    LoadingValueReference<Object, Object> valueReference =
        (LoadingValueReference) newEntry.getValueReference();
    assertThat(valueReference.futureValue.isDone()).isFalse();
    startSignal.countDown();

}

// sends audit logs for internal subsystem activity
func auditLogInternal(ctx context.Context, opts AuditLogOptions) {
	if len(logger.AuditTargets()) == 0 {
		return
	}

	entry := audit.NewEntry(globalDeploymentID())
	entry.Trigger = opts.Event
	entry.Event = opts.Event
	entry.Error = opts.Error
	entry.API.Name = opts.APIName
	entry.API.Bucket = opts.Bucket