hopefully this is the right place to ask this question, as I am still new to the whole programming world. I have a vaadin 23 app running on Java 16 and I am using Tomcat 8.5 to deploy it. This works ...

Jetty is currently using the official javax.servlet:javax.servlet-api:4.0.1 dependency. However, that dependency does not play well with JPMS since it lacks the XML schema definitions that are loaded ...