I accidentally found that changing Java to the upper case made the error disappear:
xmlns="http://java.sun.com/xml/ns/javaee"
Should be:
xmlns="http://JAVA.sun.com/xml/ns/javaee"
I accidentally found that changing Java to the upper case made the error disappear:
xmlns="http://java.sun.com/xml/ns/javaee"
Should be:
xmlns="http://JAVA.sun.com/xml/ns/javaee"