Oracle Database Express Edition (XE)

Your getStuff version that takes a class object won't work because 1.) It can't be automatically converted to JSON and 2.) The method itself has not been marked as resource method with an appropriate Consumes content type. You don't really need to try to write custom marshallers for class type to use because you don't need to pass in class types when using rest. It defeats the whole purpose of having completely decoupled client and server. Remember your clients don't have to be Java at all with rest.
The common standard here is to expose /{entityName} as the path that gets all entities of type entity name.

Thanks for the information!

Anyway, you can be more specific with your explanation... I'm still lost on this.

Thanks,
Robert