question: @ Override public CacheHeader put ( String key , CacheHeader entry ) { waitForKey ( key ) ; if ( super . containsKey ( key ) ) { mTotalSize . getAndAdd ( entry . size - super . get ( key ) . size ) ; } else { mTotalSize . getAndAdd ( entry . size ) ; } return super . put ( key , entry ) ; }
target:  Puts the entry with the specified key into the cache without waiting for cache key.