Question

Why is the following seen as better than the old way of casting?

MyObj obj = someService.find(MyObj.class, 'someId');

vs.

MyObj obj = (MyObj) someService.find('someId');

Answer 1

Another advantage to using an explicit type parameter would be to allow the service method to be implemented using a Proxy (in this case MyObj would need to be MyInterface). Without explicit type parameters, this would not be possible.

You might use a Proxy under the covers for many reasons (testing for one)