MessageBodyHandler broke from 3.1.9 to 3.1.10

I have a MessageBodyHandler that implements MessageBodyWriter, MessageBodyReader for custom serialization/deserialization that is activated in a spring boot application like this:

@ApplicationPath("/foo/bar")
public class JerseyResourceConfig extends ResourceConfig {
public JerseyResourceConfig(@Context ServletContext context) {
register(MessageBodyHandler.class);
WebApplicationContext appCtx = WebApplicationContextUtils.getWebApplicationContext(context);
registerInstances(new HashSet<>(appCtx.getBeansWithAnnotation(Path.class).values()));
}
}
This stopped working when upgrading to 3.4.2 of spring boot, which ups the version of jersey to 3.1.10
Overriding the jersey version to 3.1.9 fixes the problem.