Gunnar Morling Thanks for the report. Do you have a reproducer? Do you use Weld SE and weld-se-shaded artifact as an automatic module? In such case, javax.annotation package would be read from there and not from the deprecated module java.xml.ws.annotation. Also there is a simple "playground" project to test Weld SE and JDK9: https://github.com/manovotn/JDK9Playground.