Java Programming

Hi ,
I am wondering if I could compile a java program to a class file ignore the symbol not find error?
The reason for this is that, I want to creat a centralized function library for all my applications which will involve a bunch of dynamically generated objects by my application programs. Once the object is generated I would like to call the function in the library related to this object. Thus my plan is every time I generate some new objects, I would let the java runtime recompile the function library file and ignore the objects in the file which has not been generated yet.

Any idea?
Thank you,

Song