Atlassian (Jira SDK) Java Code Style / Checkstyle XML

Hello everyone,

since developing Plug-ins for Jira is one of my main concerns, I would like to format my Java code similar to way Atlassian does it.
I am developing on IntelliJ Ultimate and there is a plugin called Checkstyle where one can supply a checkstyle.xml to enforce specified rules on your code base. Examples fort this would be: Sun Checkstyle, Google Checkstyle.
Is there any Checkstyle.xml for Atlassian Java Code style?