checkMessage(expected, "LockC -> LockA", "LockB -> LockC", "LockA -> LockB");
  }

  public void testReentrancy_noDeadlock() {
    lockA.lock();
    lockB.lock();
    lockA.lock(); // Should not assert on lockB -> reentrant(lockA)
  }

  public void testExplicitOrdering_noViolations() {
    lock1.lock();
    lock3.lock();
    lock3.unlock();
    lock2.lock();
    lock3.lock();
  }

    checkMessage(expected, "LockC -> LockA", "LockB -> LockC", "LockA -> LockB");
  }

  public void testReentrancy_noDeadlock() {
    lockA.lock();
    lockB.lock();
    lockA.lock(); // Should not assert on lockB -> reentrant(lockA)
  }

  public void testExplicitOrdering_noViolations() {
    lock1.lock();
    lock3.lock();
    lock3.unlock();
    lock2.lock();
    lock3.lock();
  }

        then:
        !lock1.lockedState
        !lock2.lockedState
    }

    def "can lock resources atomically with tryLock"() {
        def lock1 = resourceLock("lock1", lock1Locked)
        def lock2 = resourceLock("lock1", lock2Locked)

        when:
        def disposition = null
        coordinationService.withStateLock(new InternalTransformer<ResourceLockState.Disposition, ResourceLockState>() {
            @Override

// to abstract over the relationship of two Lock calls or an RLock
// and a Lock call.
type locker2 interface {
	Lock1()
	Unlock1()
	Lock2()
	Unlock2()
}

type mutex struct {
	mu sync.Mutex
}

func (m *mutex) Lock1()   { m.mu.Lock() }
func (m *mutex) Unlock1() { m.mu.Unlock() }
func (m *mutex) Lock2()   { m.mu.Lock() }
func (m *mutex) Unlock2() { m.mu.Unlock() }

   *
   * Lock lockA = factory1.newReentrantLock(MyLockOrder.FIRST);
   * Lock lockB = factory1.newReentrantLock(MyLockOrder.FIRST);
   * Lock lockC = factory2.newReentrantLock(MyLockOrder.FIRST);
   *
   * lockA.lock();
   *
   * lockB.lock();  // will throw an IllegalStateException
   * lockC.lock();  // will throw an IllegalStateException
   *
   * lockA.lock();  // reentrant acquisition is okay
   * }</pre>
   *

   *
   * Lock lockA = factory1.newReentrantLock(MyLockOrder.FIRST);
   * Lock lockB = factory1.newReentrantLock(MyLockOrder.FIRST);
   * Lock lockC = factory2.newReentrantLock(MyLockOrder.FIRST);
   *
   * lockA.lock();
   *
   * lockB.lock();  // will throw an IllegalStateException
   * lockC.lock();  // will throw an IllegalStateException
   *
   * lockA.lock();  // reentrant acquisition is okay
   * }</pre>
   *

	AmzObjectLockRetainUntilDate     = "X-Amz-Object-Lock-Retain-Until-Date"
	AmzObjectLockMode                = "X-Amz-Object-Lock-Mode"
	AmzObjectLockLegalHold           = "X-Amz-Object-Lock-Legal-Hold"
)

var (
	// ErrMalformedBucketObjectConfig -indicates that the bucket object lock config is malformed
	ErrMalformedBucketObjectConfig = errors.New("invalid bucket object lock config")

		// No possibility of lock ordering problem if no other locks held
		return
	}

	systemstack(func() {
		i := gp.m.locksHeldLen
		if i >= len(gp.m.locksHeld) {
			throw("too many locks held concurrently for rank checking")
		}
		// Temporarily add this lock to the locksHeld list, so
		// checkRanks() will print out list, including this lock, if there
		// is a lock ordering problem.

	)
	from, stale, err = p.TransformFromStorage(ctx, out, dataCtx)
	if err != nil {
		t.Fatal(err)
	}
	if !stale || !bytes.Equal([]byte("firstvalue"), from) {
		t.Fatalf("unexpected data: %t %q", stale, from)
	}
}

func TestCBCKeyRotation(t *testing.T) {
	testErr := fmt.Errorf("test error")
	block1, err := aes.NewCipher([]byte("abcdefghijklmnop"))

		case <-ctx.Done():
			return false
		default:
			// Try to acquire the lock.
			if locked = lock(ctx, dm.clnt, &locks, id, source, isReadLock, tolerance, quorum, dm.Names...); locked {
				dm.m.Lock()

				// If success, copy array to object
				if isReadLock {
					copy(dm.readLocks, locks)
				} else {
					copy(dm.writeLocks, locks)
				}

				dm.m.Unlock()