OSGI runtime inside traditional Java EE server

Question

I understand it should probably be other way round (OSGI runtime hosting Java EE servers), as it is apparently already possible with glassfish.

However, our clients have

Answer 1

You might want to look at the bridge servlet solution from Equinox. They have a special servlet (bridge servlet) that spawns an OSGi runtime, adds an OSGi HTTP service, and proxies traffic to the HTTP service (and ultimately to your servlets that register themselves to the HTTP service).