code: public void delete(String key) throws VictimsException {
          key = hash(key);
          try {
              FileUtils.forceDelete(FileUtils.getFile(location, key));
          } catch (IOException e) {
              throw new VictimsException(String.format(
                      "Could not delete the cached entry from disk: %s", key), e);
          }
      }
docs: Delete the cache entry for a given key.
  
  @param key
  @throws VictimsException