Repository repository = CookbookHelper.openJGitCookbookRepository();
PlotWalk revWalk = new PlotWalk(repository);
ObjectId rootId = repository.resolve("refs/heads/master");
RevCommit root = revWalk.parseCommit(rootId);
revWalk.markStart(root);
PlotCommitList<PlotLane> plotCommitList = new PlotCommitList<PlotLane>();
plotCommitList.source(revWalk);
plotCommitList.fillTo(Integer.MAX_VALUE);
System.out.println("Printing children of commit " + root);