Details
Description
In org.castor.cache.hashbelt.*, some code should be cleaned up.
(1) ReentrantReadWrite.readLock(/WriteLock).lockInterruptibly is not useful, we should ReetrantReadWrite.readLock(/WriteLock) to simplify the code.
(2) Delete some local variables to simplify the code.
(3) Inline size() method to reduce get the readlock.