protected void doDamageRemoveTest(SimulatedArchivalUnit sau) throws Exception {
   /* Cache the file again; this time the damage should be gone */
   String file = sau.getUrlRoot() + DAMAGED_CACHED_URL;
   UrlCacher uc = sau.makeUrlCacher(file);
   BitSet fetchFlags = new BitSet();
   fetchFlags.set(UrlCacher.REFETCH_FLAG);
   uc.setFetchFlags(fetchFlags);
   uc.cache();
   checkUrlContent(sau, DAMAGED_CACHED_URL, 2, 2, 2, false, false);
 }