Best Java Example for Twitter Connecting

I'm porting a rails app to grails that uses oauth to push messages to Twitter. Any suggestions for groovy or java examples or opinions on the various lib开发者_StackOverflow社区raries mentioned on the twitter site for java?

---

I've used Twitter4J in the past to develop a Twitter App with pretty good results. However, I'm not sure how good its OAuth support is.

http://yusuke.homeip.net/twitter4j/en/index.html