David W. Van Couvering wrote: > - It seems to me that the environments in which mixed versions in the > same VM occur are: > > * app servers, which already deal with this through multiple > classloaders
I'm not sure that's a completely valid assumption. Some app servers have different classloaders for different ear/war files, but not for different JDBC providers. (which would be a Derby client and a Derby engine for example). Dan.
