RecentFileStore files = createProjectFileStore();
FileUi latestFile = files.latestFile();
if (latestFile == null) {
throw new CommandException("No known source file to use.");
}
SourceDataService svc = page.getTreeDataService().getSourceDataService();
File file = latestFile.getFile();
LoadSourceDataInput input = new LoadSourceDataFileInput(file);
svc.loadSourceData(input, null);
}