OpenRewrite is quite nice and has a great collection of recipes for migrating, e.g. from javax to jakarta: https://docs.openrewrite.org/recipes/java/migrate htt

OpenRewrite is quite nice and has a great collection of recipes for migrating, e.g. from javax to jakarta: https://docs.openrewrite.org/recipes/java/migrate https://docs.openrewrite.org/recipes/java/migrate There are some quirks you have to work around for big projects since the free tooling has some limitations.