All fields are identified as generic java objects

I am trying to automate java application. In the application all the fields are identified as generic java objects instead of identifying as custom java objects. I have installed “java add in” also. Can you please clarify this issue? This would bevery helpful to my assignment

You must use JAva extensebility Add in which can be isntalled from the CD of QTP.You must also have expirience in java programming,Eclipse and you need the source code of your program to describe the objects to QTP.