<p class="wp-block-paragraph">I passed a long day dealing with Jenkins runtime update (from jdk17 to jdk21), and authorisation plugin (Matrix Auth) stopping to work. Here is the tale.</p> <p class="wp-block-paragraph">Involved system:</p> <p class="wp-block-paragraph">Error log messages was related to hudson, and to matrix, and to authorization:</p> <pre class="wp-block-preformatted">Caused: jenkins.util.xstream.CriticalXStreamException: <br>[LF]> —- Debugging information —-<br>[LF]> cause-exception : com.thoughtworks.xstream.mapper.CannotResolveClassException<br>[LF]> […]
