docs: private void populateSyncCachedTiles(final MapTileList pList) {
  		synchronized (mCachedTiles) {
  			pList.ensureCapacity(mCachedTiles.size());
  			pList.clear();
  			for (final long index : mCachedTiles.keySet()) {
  				pList.put(index);
  			}
  		}
  	}