The community of Open Source is often going to go, starting to go shopping, and then only goes to SourceForge. In these days, made a Workflow project, Engine used Shark, but always didn't feel too cool. Listening to others is not bad, let's find it, I found that the good stuff in OpenSymphony is a lot, Webwork and Sitemesh don't say, Osuser, Osaccess et al., Is also good, it seems to relax in the future, Otherwise, it's ignorant, haha