Question

My project has two bundles, lets say Bundle A and Bundle B.

Now Bundle A needs to access a class from Bundle B.

How can I do that?

Answer 1

There are two ways:

1. Add the dependency of bundle B to the Manifest of bundle A: Require-Bundle: bundle-id-of-bundle-A
2. Import the package of the wanted class in the Manifest of bundle A: Import-Package: package.of.your.class

In both situations, you need to export the package that contains your class in bundle B: Export-Package: package.of.your.class

Also, here’s a good intro:
http://ctpjava.blogspot.com/2010/09/introduction-to-osgi.html