VFS runtime generated class file not loaded

JBOSS explodes the WAR file into some temp vfs folder.
My application generate some class on the runtime which stores in temp/vfs/.../WEB-INF/classes.
When application tries to load that class, it can't.
If I put that class on deployment time which packaged into WAR file only then it can be loaded. How can I load those dynamically generated classes on runtime without packaging into WAR.