@Resource injection does not fail in a servlet when the resource is missing

The attached web application builds, deploys and runs perfectly.

However, if you remove one of the <env-entry> elements from the web.xml it will still deploy and run.

The associated injection point is left as null instead of having the deployment fail as required by the Java EE 7 Spec in "EE.5.2.5 Annotations and Injection", where it states:

If the container fails to find a resource needed for injection, initialization of the class must fail, and the class must not be put into service.

Also see StackOverflow question https://stackoverflow.com/questions/45716813/glassfish-wildfly-not-failing-if-resource-cannot-be-resolved