I have this problem:

inherhitance tree:

PersistentObject
|
| - Agent
|
| - User
| - Group


the project was built with lazy='false' everywhere in the mappings.
So you can image the performance of it... now i have to improve this system, and the time is short.

First thing i did was to set all lazy as true, but this implied in a lot of problems (most involved with polimorphism and instanceof).

I have in one place, one problem, that reproces itself everywhere on the system, its the following:

i need to do a instanceof of one Agent, and then cast it to User or Group
with lazy='false' this works perfectly
but with lazy='true' i get:

java.lang.ClassCastException: com.company.project.model.Agent$$EnhancerByCGLIB$$71276b45

the object is not User neither Group
Its proxying the Agent

BEST SOLUTION I CAN THINK:

is there any way the proxy override the right instance?
so when i print the object i get com.company.project.model.User$$EnhancerByCGLIB$$71276b45 or com.company.project.model.Group$$EnhancerByCGLIB$$71276b45

I apreciate the time spent to read this