JenkinsLocationConfiguration.xml file is not created when using startJenkins()

[joseblas]

Jenkins and plugins versions report

Environment

Only JTH

What Operating System are you using (both controller, and any agents involved in the problem)?

Mac OS

Reproduction steps

This test shows the error:

      rr.startJenkins();
      String[] jenkinsLocations = rr.getHome().list(
              (dir, name) -> name.equalsIgnoreCase("jenkins.model.JenkinsLocationConfiguration.xml"));
      assertThat(jenkinsLocations, IsArrayWithSize.arrayWithSize(1));

When using rr.runRemotely the files is created (this includes rr.then), but not always then can be used (or makes testing very complex at least).

This test currently passes

  rr.then( s -> {
        String[] jenkinsLocations = s.jenkins.getRootDir().list(
                (dir, name) -> name.equalsIgnoreCase("jenkins.model.JenkinsLocationConfiguration.xml"));
        assertThat(jenkinsLocations, IsArrayWithSize.arrayWithSize(1));
        });

And this both scenarios should have the same outcome.

In my particular case, I have two Jenkins instances connecting to each other, one provides a file where the connections details are provided, which cannot be created (using RealJenkinsRule) because the locations hasn't been set yet.

This error happens now because previously the port was assigned beforehand and now is assigned by jetty in runtime by a file. To that port number could be passed out as param in jcasc

unclassified:
 location:
   url: ${MY_URL}

but now is impossible.

Expected Results

JenkinsLocationConfiguration.xml file exists when the RealJenkinsRule is used.

Actual Results

The mentioned file doesn't exist.

Anything else?

No response

[jglick]

#464 (comment)