Shurely shome mistake?
Tc Server is apache's Tomcat + Spring stuff (management, monitoring, instrumentation, ...) - it's not an OSGi-based product. Spring did have an OSGi server (Spring DM Server), which they've now donated to Eclipse.
Call it a testimony to the changing nature of workloads, evolving computing architectures, and the passing nature of your IT vendor. Mid-2000s, the advice - as well as the headlines - was about how to migrate from a costly and closed-source Java application server such as BEA Systems' WebLogic Server to the open and free JBoss …