For Jetslide I needed a readability Java clone. There are already some tools, but I wanted some more and other features so I adapted the existing goose and jreadability and added some stuff. Check out the detection quality at Jetslide and fork it to improve it – since today snacktory is free software !

Copied from the README:

• better article text detection than jReadability
• only Java deps
• more tests

• similar article text detection although better detection for none-english sites (German, Japanese, …)
• snacktory does not depend on the word count in its text detection to support CJK languages
• no external Services required to run the core tests => faster tests
• better charset detection
• with caching support
• skipping some known filetypes

• only the detection of the top image and the top text is supported at the moment
• some tests which passed do not pass. But added a bunch of other useful sites (stackoverflow, facebook, other languages …)

HtmlFetcher fetcher = new HtmlFetcher();
// set cache. e.g. take the map implementation from google collections:
// fetcher.setCache(new MapMaker().concurrencyLevel(20).
 //               maximumSize(count).expireAfterWrite(minutes, TimeUnit.MINUTES).makeMap();
JResult res = fetcher.fetchAndExtract(url, resolveTimeout, true);
res.getText(); res.getTitle(); res.getImageUrl();

From http://karussell.wordpress.com/2011/07/12/snacktory-yet-another-readability-clone-this-time-in-java/