Here's the problem.

I have a program which takes an EAR file as input and generates an
install script.

I populate a bunch of JavaBeans based on information extracted from the
EAR file.

The user can change some mutable fields during the process and I have
off any settings they might have changed using Castor into an XML file.

When the user comes back in I want to read their changes in so they
don't have to setup the application again.  They could have new EJBs or
a new role in their application so I can't just wipe out what I have
prepopulated with the saved settings.

The only thing I've come up with so far is to take the ArrayList of
beans and do a manual sync between the two lists of beans.  I think
that's too ugly and there should be a better way than that.

I could write a custom .equals method for the beans and if it's the
same take the new version but I don't see where Castor is calling my
setMyProperty(ArrayList list) method.

Any suggestions or past experience with something like this would be
REALLY appreciated.

Thanks