1. In the interface  not the implementation have u defined the method test?
2. If it is implemented, Change the bundle version in bnd file and make a new build. Then from felix console verify the latest version reflected in the bundles.
If 2 works & you are going to make lot of frequent changes then give the version as snapshot till it get stable.
Thank you ! I had issues with my bnd so Created a new project. It solved this.