final OCacheEntry cacheEntry = loadPageEntry(pageIndex, 0);
cacheEntry.acquireExclusiveLock();
try {
final OHashIndexBucket<K, V> emptyBucket = new OHashIndexBucket<K, V>(MAX_LEVEL_DEPTH, cacheEntry, keySerializer,
valueSerializer, keyTypes, getTrackMode());
cacheEntry.markDirty();
logPageChanges(emptyBucket, cacheEntry.getFileId(), cacheEntry.getPageIndex(), true);
} finally {
cacheEntry.releaseExclusiveLock();
diskCache.release(cacheEntry);