Java rooing with xjc

I have been working on web services using java and found some useful tools to speed up development time. I have been using xjc to generate the web resource entities based on the provided schema. This program generates the classes used for the rest service along with the required annotations. Roo is another tool that generates code. It has an option to reverse engineer a database. This allows creating classes with annotations from an existing database. Our stack requires us to use java, spring and hibernate; roo allows creating entities with test in a fraction of the time.