JIRA Rest API + JRJC - Retrieve all changelog from an issue

[baegmon]

I'm trying to obtain all changelog from an issue using JRJC but I seem to be getting a null object (even though I can read other things such as the description).

How do I get this working properly?

My code: 

issue = issueRestClient.getIssue(issueKey).get();

System.out.println(issue.getDescription()); // works well

// Code below does not work, changelogGroups = null

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Iterable<ChangelogGroup> changelogGroups = issue.getChangelog();

if(changelogGroups != null){
    for(ChangelogGroup changelogGroup : changelogGroups){
        System.out.println("Author: " + changelogGroup.getAuthor());
    }
}
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