https://bz.apache.org/bugzilla/show_bug.cgi?id=65256
Bug ID: 65256
Summary: ServletContainerInitializer.onStartup() should receive
only classes, not interfaces
Product: Tomcat 9
Version: 9.0.45
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Servlet
Assignee: dev@tomcat.apache.org
Reporter: gr.grzy...@gmail.com
Target Milestone: -----
Extracting this issue from https://bz.apache.org/bugzilla/show_bug.cgi?id=65244
I've added java.util.EventListener.class to @HandlesTypes and I got ... a lot
of stuff, including:
```
1 = {@3229} "interface javax.faces.validator.Validator"
...
3 = {@3230} "interface javax.faces.event.SystemEventListener"
...
5 = {@3232} "interface javax.faces.event.BehaviorListener"
```
I also got package-info inside the set.
So I got back to the spec:
> The HandlesTypes annotation on the implementation of the
> ServletContainerInitializer is used to express interest in classes that may
> have annotations (type, method or field level annotations) specified in the
> value of
> the HandlesTypes or if it extends / implements one those classes anywhere in
> the class’ super types.
I don't think I should get `interface javax.faces.validator.Validator` which
exten ds `java.util.EventListener`, because it's not a class - it's an
interface.
This may be more difficult to interpret, but if both classes and interfaces
were needed, the spec would say "types" or "java.lang.Class" instances...
Javadoc says about:
> the Set of application classes that extend, implement, or have been annotated
> [...]
This time I checked that Jetty (9.4.40) also passes interfaces.
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