Inject a singleton in an ExceptionMapper

Question

I have an ExceptionMapper defined as following

@Provider
public class MyExceptionMapper implements ExceptionMapper<Throwable> {
   @Inject
   private Manager myManager;

   @Override
   public Response toResponse(Throwable exception) {
      // My implementation
   }
}

Deploying this code on glassfish 4 results with exception:

org.glassfish.hk2.api.UnsatisfiedDependencyException: 
There was no object available for injection at
Injectee(requiredType=Manager,parent=MyExceptionMapper,qualifiers {}),position=-1,optional=false,self=false,unqualified=null,955636053)

When I use @Context instead of @Inject I do not see the exception but myManager is null I tried making MyManager as @ManagedBean, @Singleton or an EJB (Stateless, Singleton) and non works

http://stackoverflow.com/questions/16216759/dependency-injection-with-jersey-2-0 — Aksel Willgert, Feb 10 '14 at 16:32
Thanks for the suggestion. But the suggested solution is not quite practical since I have to bind all my CDI beans that I need to inject inside MyExceptionMapper (and there dependencies) — hmashlah, Feb 10 '14 at 20:10
Are you create beans.xml? Inject annotation doesn't work with out it. — Fireworks, Feb 11 '14 at 07:16
I have beans.xml but I do not list my beans in it, and inject works when I inject one ManagedBean inside another ManagedBean — hmashlah, Feb 11 '14 at 08:59
@hmashlah If you found a solution please post it and mark it as accepted. FWIW, CDI injection in Wildfly 8 works just fine in JAX-RS providers just by adding a scope annotation. For me, Dependent works. — jpangamarca, May 03 '17 at 17:16

score 0 · Answer 1 · answered Feb 15 '14 at 15:29

0

In JEE6 (with glassfish 3) you have to add

@javax.annotation.ManagedBean

to the provider implementation. Possibly this works also for Glassfish 4

As far as I know, this issues comes from the following. CDI is not in place to manage the dependencies of restful services and providers by default. But when adding @ManagedBean you enable CDI to create the instance.

Here is an example where I introduced CDI to a restful service using jersey.

answered Feb 15 '14 at 15:29

Peter

783
4
14

Thanks for the suggestion but adding ManagedBean to the ExceptionMapper did not help. – hmashlah Feb 15 '14 at 18:50

score 0 · Answer 2 · answered Feb 15 '14 at 18:53

0

You can follow the updates regarding this issue here https://java.net/jira/browse/JERSEY-2393

answered Feb 15 '14 at 18:53

hmashlah

144
7

score 0 · Answer 3 · answered Dec 20 '17 at 15:48

0

You could use OmniFaces Beans to get a CDI managed bean instance in your ExceptionMapper:

Beans.getInstance(Bean.class)

I'm using this with @javax.ejb.Stateless beans containing @javax.persistence.PersistenceContext.

answered Dec 20 '17 at 15:48

Jasper de Vries

19,370
6
64
102

Inject a singleton in an ExceptionMapper

3 Answers3