@get:Synchronized @set:Synchronized
  var maxSize: Long = maxSize
    set(value) {
      field = value
      if (initialized) {
        cleanupQueue.schedule(cleanupTask) // Trim the existing store if necessary.
      }
    }

  /*
   * This cache uses a journal file named "journal". A typical journal file looks like this:
   *
   *     libcore.io.DiskLruCache
   *     1
   *     100