As recommended by the Weld team, we should try moving the following steps to occur after http://docs.jboss.org/cdi/spec/1.2/cdi-spec.html#after_deployment_validation triggers:

this.creationalContext = beanManager.createCreationalContext( null );
this.instance = injectionTarget.produce( creationalContext );
injectionTarget.inject( this.instance, creationalContext );
injectionTarget.postConstruct( this.instance );