IBM DeveloperWorks has an article and code coverage tools here.
It looks really smooth, especially Hansel which throws JUnit errors at you if you have parts of the code not covered. I’d like to try out TDD on a project, but I think I’ll try to find some kind of TDD workshop to attend before I take the plunge.
Many people get a first impression of Spring as something that replaces EJBs, and can only be used if you don’t use it. Luckily that is not the case. In the few events where you actually have to use EJBs (manager forces you or you actually for once need the distribution/remoting) Spring contains helper classes to simplify EJB development. There is an article about it over at javaworld here.