android/guava/src/com/google/common/util/concurrent/CycleDetectingLockFactory.java
private void aboutToAcquire(CycleDetectingLock lock) {
    if (!lock.isAcquiredByCurrentThread()) {
      ArrayList<LockGraphNode> acquiredLockList = acquiredLocks.get();
      LockGraphNode node = lock.getLockGraphNode();
      node.checkAcquiredLocks(policy, acquiredLockList);
      acquiredLockList.add(node);
    }
  }
private void aboutToAcquire(CycleDetectingLock lock) {
    if (!lock.isAcquiredByCurrentThread()) {
      ArrayList<LockGraphNode> acquiredLockList = acquiredLocks.get();
      LockGraphNode node = lock.getLockGraphNode();
      node.checkAcquiredLocks(policy, acquiredLockList);
      acquiredLockList.add(node);
    }
  }
private void aboutToAcquire ( CycleDetectingLock lock ) { if ( ! lock . isAcquiredByCurrentThread ( ) ) { ArrayList < LockGraphNode > acquiredLockList = acquiredLocks . get ( ) ; LockGraphNode node = lock . getLockGraphNode ( ) ; node . checkAcquiredLocks ( policy , acquiredLockList ) ; acquiredLockList . add ( node ) ; } }
CycleDetectingLock implementations must call this method before attempting to acquire the lock.
CycleDetectingLock implementations must call this method before attempting to acquire the lock .