Hi everyone! We ran into an issue with running two webapps with different versions of Felix (1.2.1 and 2.0.1) in the same VM. The symptom we see is that it can't find the the framework context as described in an existing issue (<http://issues.apache.org/jira/browse/FELIX-1834>). The problem was that the class name of the class loader that is used to detect the context changed between 1.2.1 and 2.0. The committed fix only helps if the application which uses Felix 2.0 starts up first, because then the 2.0 version of URLHandlers is used. If the application with Felix 1.2 starts up first you run into the same problem as before. So I patched Felix 1.2 as well to check against the class name of the Felix 2.0 class loader, which makes the applications apparently run fine, no matter in which order they start.
Even though it seems to work fine, I'm a bit worried that the Felix 2.0 application is using the Felix 1.2 URLHandlers class and dependencies. Do you guys see any issues with that? I don't know much about Felix, but wouldn't it be better to have a very small dispatching URLStreamHandlerFactory which chooses the actual URLStreamHandlerFactory to use based on the class loader (like it does for the context now). That would minimize the overlap of code between versions of Felix. Cheers, Chris
