This plug in is for use content:encoded in feeds.
The latest version is 0.4 available.
SyndFeedInput input = new SyndFeedInput();
SyndFeed syndfeed = input.build(new XmlReader(feed.toURL()));
Module module = syndfeed.getModule("http://purl.org/rss/1.0/modules/content/");
ContentModule content = (ContentModule) module;
Iterator it = content.getEncodeds().iterator();
System.out.println( it.next() );