To use javax namespace, you must use a version < 4.0.0 of this plugin. From 4.0.0 it uses the jakarta namespace for xml bindings.

The Master Concordance File, available in CSV version in this repository, defines standards and provides documentation necessary to build structured databases from the IRS E-File XML files posted on ...

What was considered best practice yesterday does not hold true today and this is especially relevant when it comes to XML sitemaps, which are almost as old as SEO itself. The problem is ...