Simple new user question

[Nick Khamis]

Hello Everyone,

I have the following resource running on tomcat:

@Context
    ResourceContext rc;

    Map<String, Bean> bc;

    @POST
    public void init() {
        this.bc = new ConcurrentHashMap<String, Bean>();
    }

    @GET
    public Collection<Bean> allBeans() {
        return bc.values();
    }

    @GET
    @Path("{id}")
    public Bean bean(@PathParam("id") String id) {
        return bc.get(id);
    }

    @POST
    public Response add(Bean bean) {
        if (bean != null) {
            bc.put(bean.getName(), bean);
        }
        final URI id = URI.create(bean.getName());
        return Response.created(id).build();
    }

    @DELETE
    @Path("{id}")
    public void remove(@PathParam("id") String id) {
        bc.remove(id);
    }

    @Path("/roaster/{id}")
    public RoasterResource roaster(){
        return this.rc.initResource(new RoasterResource());
    }

For now I am trying to invoke the different resource using curl. Now, I am
trying to run:

@Path("/roaster/{id}")
    public RoasterResource roaster(){
        return this.rc.initResource(new RoasterResource());
    }

to initialize a new instance of RoasterResource however, not able to do so.
Can someone please help me in invoking this service without getting hit
with "null pointer exception" please!

Kind Regards,

Nick.