OSGi - How mature is this technology?

Question

I have a requirement where I need to share some web resources (jsp, html, js, images, css etc.) across different

Answer 1

OSGi is a fairly mature technology - this is how all Eclipse plugins are structured. However, the technology has yet to gain traction in the web app space because there are very few servlet containers that support it.

If you want to read up on it, you should check out Modular Java by Craig Wells, as it gives a fairly good background on OSGi in relation to the Spring Framework.

With regard to sharing resources, you may want to look into an EAR package. I have successfully used this to deploy multiple WAR files with a common set of resources (for example, a compressed version of Dojo).

For example, an EAR can look like:

 ear-file/proj1
 ear-file/proj2
 ear-file/config
 ear-file/lib
 ear-file/resources
 ear-file/META-INF
 ear-file/APP-INF

You may also want to read up on the thread .war vs .ear file from a previous stackoverflow post.