// NPE on null listener, so we propagate that contract up into the add method as well.
    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that
    // another thread can't run the list out from under us. We only add to the list if we have not
    // yet started execution.
    synchronized (this) {

	exit_1
fi

./mc mb --with-lock minio3/newbucket-olock
sleep 5

enabled_minio2=$(./mc stat --json minio2/newbucket-olock | jq -r .ObjectLock.enabled)
if [ $? -ne 0 ]; then
	echo "expected bucket to be mirrored with object-lock but not present, exiting..."
	exit_1
fi

if [ "${enabled_minio2}" != "Enabled" ]; then
	echo "expected bucket to be mirrored with object-lock enabled, exiting..."
	exit_1
fi

	AmzFwdHeaderLastModified       = "x-amz-fwd-header-Last-Modified"

	AmzFwdHeaderObjectLockMode        = "x-amz-fwd-header-x-amz-object-lock-mode"
	AmzFwdHeaderObjectLockLegalHold   = "x-amz-fwd-header-x-amz-object-lock-legal-hold"
	AmzFwdHeaderObjectLockRetainUntil = "x-amz-fwd-header-x-amz-object-lock-retain-until-date"
	AmzFwdHeaderMPPartsCount          = "x-amz-fwd-header-x-amz-mp-parts-count"

	s.Lock()
	defer s.Unlock()
	stats, ok := s.stats[bucket]
	if !ok {
		stats = &bucketS3RXTX{
			s3InputBytes: uint64(n),
		}
	} else {
		stats.s3InputBytes += uint64(n)
	}
	s.stats[bucket] = stats
}

// Increase S3 total output bytes for input bucket
func (s *bucketConnStats) incS3OutputBytes(bucket string, n int64) {
	s.Lock()
	defer s.Unlock()

		}
	case debugWaitForExit:
		c.reconnectMu.Lock()
		c.handleMsgWg.Wait()
		c.reconnectMu.Unlock()
	case debugSetConnPingDuration:
		c.connMu.Lock()
		defer c.connMu.Unlock()
		c.connPingInterval, _ = args[0].(time.Duration)
		if c.connPingInterval < time.Second {
			panic("CONN ping interval too low")
		}
	case debugSetClientPingDuration:
		c.connMu.Lock()
		defer c.connMu.Unlock()

	CreatedAt         time.Time // only for site replication
	NoLock            bool      // does not lock the make bucket call if set to 'true'
}

// DeleteBucketOptions provides options for DeleteBucket calls.
type DeleteBucketOptions struct {
	NoLock     bool             // does not lock the delete bucket call if set to 'true'
	NoRecreate bool             // do not recreate bucket on delete failures

	return h.Bucket
}

func (h *healingTracker) setBucket(bucket string) {
	h.mu.Lock()
	defer h.mu.Unlock()

	h.Bucket = bucket
}

func (h *healingTracker) getObject() string {
	h.mu.RLock()
	defer h.mu.RUnlock()

	return h.Object
}

func (h *healingTracker) setObject(object string) {
	h.mu.Lock()
	defer h.mu.Unlock()

	h.Object = object
}

		if m.cancelFn != nil {
			m.cancelFn(context.Canceled)
		}
		// Wait for senders to release.
		m.respMu.Lock()
	}

	defer m.respMu.Unlock()
	m.closeLocked()
}

func (m *muxClient) closeLocked() {
	if m.closed {
		return
	}
	// We hold the lock, so nobody can modify m.respWait while we're closing.
	if m.respWait != nil {
		xioutil.SafeClose(m.respWait)
		m.respWait = nil
	}

      in.defaultReadObject();
      lock = new Object();
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  private static final class NonSerializableMemoizingSupplier<T extends @Nullable Object>
      implements Supplier<T> {
    private final Object lock = new Object();

				defer t.updating.Unlock()
				t.update(context.Background())
			}()
		}
		return *v, nil
	}

	// Get lock. Either we get it or we wait for it.
	t.updating.Lock()
	defer t.updating.Unlock()

	if time.Since(time.UnixMilli(t.lastUpdateMs.Load())) < ttl {
		// There is a new value, release lock and return it.
		if v = t.val.Load(); v != nil {
			return *v, nil
		}
	}