Spring Rest Json Service inside a Felix OSGi container

So im trying to create a remote Rest (JSON) service inside an OSGi bundle based in Felix with Maven.

my basic service interface :

public interface RestFileService {

   @RequestMapping(value = "/file", method = RequestMethod.POST)
   public String getFile(Long id);

My implementation of the interface

public class RestFileServiceImpl implements RestFileService{

    public String getFile(Long id) {
        return "test service";

Normally i would add this to my web.xml



And this would work fine inside a normal webapp. But now i want to put this inside an OSGi bundle.

Servlet 3.0 allows you to use @WebServlet to declare a servlet without the web.xml So i created a RestServlet

@WebServlet(value="/rest", name="rest-servlet")
public class RestServlet implements ServletContextListener {

private static Log sLog = LogFactory.getLog(RestServlet.class);

public void contextInitialized(ServletContextEvent arg0) {
    sLog.info("initializing the Rest Servlet");

public void contextDestroyed(ServletContextEvent arg0) {
    sLog.info("un-initializing the Rest Servlet");  

This is my OSGi activator:

public class Activator implements BundleActivator {

private static Log sLog = LogFactory.getLog(Activator.class);

public void start(BundleContext context) throws Exception {

     * Exposing the Servlet

    Dictionary properties = new Hashtable();
    context.registerService(RestFileService.class.getName(), new  RestFileServiceImpl(), properties );

    sLog.info("Registered Remote Rest Service");

public void stop(BundleContext context) throws Exception {
    sLog.info("Unregistered Remote Rest Service");


I know Felix has its own http implementation with JAX but im trying to do this with spring annotations and as little XML as possible. Can i force it to register the annotation driven 3.0 servlet ?

What am i doing wrong ? is this even possible ?


If you're looking for an easy way to do REST in OSGi, take a look at some of the web components provided by the Amdatu project. This page pretty much explains how to create a REST service: https://amdatu.org/application/web/ and there is also a video which will talk you through the whole process: https://amdatu.org/generaltop/videolessons/

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