title: How to set log level for Jenkins in plugin tests
body: <p>I'm working on <a href="https://github.com/jenkinsci/workflow-durable-task-step-plugin" rel="nofollow noreferrer">workflow-durable-task-step Jenkins plugin</a> and I want to debug one of the tests of this plugin. To understand the problem I need to see Jenkins logs. By default <code>INFO</code> level logs are shown during tests, but I need <code>FINE</code> level.</p>
  <p>How to show all possible logs for internal Jenkins process during <code>mvn test</code> command?</p>
  <p>I've tried to run tests like <code>mvn -Djava.util.logging.loglevel=FINEST test</code> but this option changes log level for test itself but not Jenkins internal process. I mean if I write something like <code>LOGGER.log(Level.FINE, &quot;Hello world&quot;);</code> in the body of my test - it will be show but no logs with <code>FINE</code> level of Jenkins process started by my test will be displayed.</p>