Javassist compilation problem

[gregoire.lochard]

We are using javassist to build hundreeds of classes in the following way :

abstract class A {
 protected int getValue(){
 }
}

abstract class ANumerique extends A {
 protected abstract int evaluer();
}

class B1 extends ANumerique {
 protected int evaluer(){
 return getValue();
 }
}

The more we are creating classes like class B (B2, B3...), the worst is the compilation elapsed time.
Can Somebody help ?