private final ReentrantReadWriteLock delegateLock = new ReentrantReadWriteLock();
private final ReadLock delegateReadLock = delegateLock.readLock();
private final WriteLock delegateWriteLock = delegateLock.writeLock();
private final ReentrantReadWriteLock delegateLock = new ReentrantReadWriteLock();
private final ReadLock delegateReadLock = delegateLock.readLock();
private final WriteLock delegateWriteLock = delegateLock.writeLock();