Well, while developing my enterprise application in NetBeans 7.1.2 with GlassFish 3.1.2 as the application server, the following most notable error appeared and made the project unable to deploy:

Error creating managed object for class: class org.jboss.weld.servlet.WeldListener

and a bunch of other errors and exceptions.


I tried to revert my changes since the last revision from the revision control and found myself in the same situation.

Manual clean followed by build also did nothing.

Solution:
My gut told me I just needed to clean the NetBeans trash and so I did:

  • I deleted all of my project locally;
  • Restarted NetBeans;
  • Checked out my project from the revision control again;
  • Run it, and it worked!
I don't know the cause of this, but if you can't find another way then just try to clean your NetBeans generated junk.

I was having this in the context of a RESTful web service (Jersey) plus EJBs which was working properly. A little investigation told me that it might be a bug in Jersey, check the links below for more information.

I also invite you to comment on a better solution for this and I'll update this post with it.

Update: I can now reproduce this issue, if I set my RESTful web service to be session scoped (@SessionScoped) it breaks but sometimes I can make it work by changing to request scoped (@RequestScoped) again. My source code is simply the following:

@SessionScoped
@Path("/mypath")
public class MyREST {
    
    @EJB
    private MyFacadeLocal myFacade;
    
    public MyREST() {
    }

    @GET
    @Produces("text/plain")
    public String respond() {        
        return "DONE";
    }
}

Useful links: