fs.getFileStatus(thirdCacheFile).getModificationTime(), true,
cfile3);
manager.releaseCache(cfile3.getStatus());
manager.releaseCache(cfile2.getStatus());
manager.releaseCache(cfile1.getStatus());
// Getting the fourth cache will make the number of sub directories becomes
// 4 which is greater than 3. So the released cache will be deleted.
stat = fs.getFileStatus(fourthCacheFile);
CacheFile cfile4 = new CacheFile(fourthCacheFile.toUri(),