docs: private void cutCurrentCache() {
  
  		final File lock=Configuration.getInstance().getOsmdroidTileCache();
  		synchronized (lock) {
  
  			if (mUsedCacheSpace > Configuration.getInstance().getTileFileSystemCacheTrimBytes()) {
  
  				Log.d(IMapView.LOGTAG,"Trimming tile cache from " + mUsedCacheSpace + " to "
  						+ Configuration.getInstance().getTileFileSystemCacheTrimBytes());
  
  				final List<File> z = getDirectoryFileList(Configuration.getInstance().getOsmdroidTileCache());
  
  				// order list by files day created from old to new
  				final File[] files = z.toArray(new File[0]);
  				Arrays.sort(files, new Comparator<File>() {
  					@Override
  					public int compare(final File f1, final File f2) {
  						return Long.valueOf(f1.lastModified()).compareTo(f2.lastModified());
  					}
  				});
  
  				for (final File file : files) {
  					if (mUsedCacheSpace <= Configuration.getInstance().getTileFileSystemCacheTrimBytes()) {
  						break;
  					}
  
  					final long length = file.length();
  					if (file.delete()) {
  						if (Configuration.getInstance().isDebugTileProviders()){
  							Log.d(IMapView.LOGTAG,"Cache trim deleting " + file.getAbsolutePath());
  						}
  						mUsedCacheSpace -= length;
  					}
  				}
  
  				Log.d(IMapView.LOGTAG,"Finished trimming tile cache");
  			}
  		}
  	}