When should I use a platform like OSGI and when it must be avoided?

Question

My question is pretty straightforward: What are the features of an application that force the developer to exploit OSGI-like system? What are the cases, when such a utility

Answer 1

Use OSGI if you want some of:

• a very modular code structure (extreme case : each install has a different set of modules/plugins)
• to start/stop/upgrade a module without stopping the rest of the application