Exactly the same thing happened at my previous company... In particular, @GWTIncompatable made the leaking between frontend and backend an absolute nightmare.

Exactly the same thing happened at my previous company... In particular, @GWTIncompatable made the leaking between frontend and backend an absolute nightmare. Their whole application was built on the idea that your models would be the same from the presentation layer all the way through to the database layer for 'DRY' reasons. It was horrible to work with and security was a disaster.