When a Jetty 12 EE 9 core (i.e., one built from the jakarta branch of jenkins) and Jetty 12 EE 9 compatible test harness (i.e., one built from the forward branch of jenkins-test-harness) are used, the following test fails:

• org.jenkinsci.plugins.saml.OpenSamlWrapperTest

One solution is e.g. https://github.com/jenkinsci/saml-plugin/pull/421 to migrate to using Mockito with Jetty 12 EE 9. Unfortunately, that approach is not backward compatible with Jetty 10 or Jetty 12 EE 8, so the PR will have to remain in draft until we release Jetty 12 EE 9 support. Still, we should prepare the PR in advance.

Alternatively, it would be more desirable if this test could instead stop using Mockito as in https://github.com/jenkinsci/view-job-filters-plugin/pull/58 and https://github.com/jenkinsci/configuration-as-code-plugin/pull/2494. That change could be prepared and released in advance without updating this plugin's core baseline.