When you deploy your Maven Archetype AEM Project- it places the bundle in the install folder when you run the command
mvn -PautoInstallPackage install
To fix any Java issue, recompile in Eclipse and redeploy.
So two thing happen when using the above command:
1 - THE OSGI bundle is placed into the AEM service container and placed into an Active State (assuming you have all correct dependencies)
2 - Its placed in the Install folder under /app