@Override
	public Container containerOfId(ResourceId id) {
		lock.readLock().lock();
		try {
			return containers.get(id);
		} finally {
			lock.readLock().unlock();
		}
	}
@Override
	public Container containerOfId(ResourceId id) {
		lock.readLock().lock();
		try {
			return containers.get(id);
		} finally {
			lock.readLock().unlock();
		}
	}
@ Override public Container containerOfId ( ResourceId id ) { lock . readLock ( ) . lock ( ) ; try { return containers . get ( id ) ; } finally { lock . readLock ( ) . unlock ( ) ; } }
{@inheritDoc}
{