code: public void add(String id, String url, long timestamp, boolean needsUpdate) {
          final NvdCveInfo item = new NvdCveInfo();
          item.setNeedsUpdate(needsUpdate); //the others default to true, to make life easier later this should default to false.
          item.setId(id);
          item.setUrl(url);
          item.setTimestamp(timestamp);
          collection.put(id, item);
      }
docs: Adds a new entry of updateable information to the contained collection.
  
  @param id the key for the item to be added
  @param url the URL to download the item
  @param timestamp the last modified date of the downloaded item
  @param needsUpdate whether or not the data needs to be updated