Provide runtime hints for Spring Boot 3 native applications

[Artur-]

Spring Boot 3 native applications require compile time definitions of which reflection data needs to be available at runtime. Atmosphere could provide this info for its own classes by adding a RuntimeHintsRegistrar.

An example registrar I have tested basic functionality with looks like this (certainly incomplete):

public class AtmosphereHintsRegistrar implements RuntimeHintsRegistrar {

    @Override
    public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
        ReflectionHints ref = hints.reflection();
        try {
            for (Class<?> c : getAtmosphereClasses()) {
                ref.registerType(c, MemberCategory.values());
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

    }

    private Collection<? extends Class<?>> getAtmosphereClasses() {
        Set<Class<?>> classes = new HashSet<>();
        classes.add(DefaultAtmosphereResourceFactory.class);
        classes.add(SimpleHttpProtocol.class);

        classes.addAll(AtmosphereFramework.DEFAULT_ATMOSPHERE_INTERCEPTORS);
        classes.add(AtmosphereResourceLifecycleInterceptor.class);
        classes.add(TrackMessageSizeInterceptor.class);
        classes.add(SuspendTrackerInterceptor.class);
        classes.add(DefaultBroadcasterFactory.class);
        classes.add(SimpleBroadcaster.class);
        classes.add(DefaultBroadcaster.class);
        classes.add(UUIDBroadcasterCache.class);
        classes.add(VoidAnnotationProcessor.class);
        classes.add(DefaultAtmosphereResourceSessionFactory.class);
        classes.add(JSR356AsyncSupport.class);
        classes.add(DefaultMetaBroadcaster.class);

        return classes;
    }
}

[jfarcand]

@Artur- Thanks! Will work on it.