title: Jenkins Gerrit Trigger with parameters
body: <p>We use Jenkins with Gerrit to trigger certain jobs on Jenkins. We use <code>Trigger on</code> <code>Comment Added Contains Regular Expression</code> to run the job. The job executes a shell script using maven <code>mvnw</code> command with some command line parameters for maven execution.</p>
  
  <p>One of these jobs has regex like <code>.*(\+WEB_TEST|\+WT).*</code>. So whenever we want web tests to run, we put comment like <code>+WT</code> on the gerrit patch-set. Now we want to pass an <strong>optional</strong> parameter to maven through this comment.</p>
  
  <p>Is it possible altogether?</p>