code: public static Store<InputStream> anonymousStore()
          throws IOException
      {
          File temp = File.createTempFile( "ops4j-store-anonymous-", "" );
          temp.delete();
          temp.mkdir();
          return new TemporaryStore( temp, true );
      }
docs: If the store must be unique, here is it.
  
  @return unique storage
  
  @throws java.io.IOException in case no temp folder has been found.