public static DiscCacheAware createReserveDiscCache(File cacheDir){
  File individualDir=new File(cacheDir,"uil-images");
  if (individualDir.exists() || individualDir.mkdir()) {
    cacheDir=individualDir;
  }
  return new TotalSizeLimitedDiscCache(cacheDir,2 * 1024 * 1024);
}

public static DiscCacheAware createReserveDiscCache ( File cacheDir ) { File individualDir = new File ( cacheDir , "uil-images" ) ; if ( individualDir . exists ( ) || individualDir . mkdir ( ) ) { cacheDir = individualDir ; } return new TotalSizeLimitedDiscCache ( cacheDir , 2 * 1024 * 1024 ) ; }
creates reserve disc cache which will be used if primary disc cache becomes unavailable
