How to generate JaxB-Classes with java.util.Optional?
问题 I use the jaxb2-maven-plugin to generate JaxB-Classes from a given XSD. It works fine. But now I want to use java.util.Optional in the generated Classes. But JaxB generated the Classes without the Optionals. So I'm forced to make a Null-Check of every Variable. Did anybody know how the jaxb2-maven-plugin has to be configured to use the java.util.Optional? Thanks for you help! 回答1: Maybe you could find something more generic but i'm not sure if this is possible. Anyway you can still define