Map<String, String> downloadsMap = getPanel().getDownloadsMap();
String url = downloadsMap.get(getPanel().getVersionList().getSelectedValue().toString());
UrlZipper zipper = new UrlZipper(url, sourceDirectory, new FuelZipEntryFilter());
try {
zipper.unzip();
} catch (MalformedURLException ex) {
Exceptions.printStackTrace(ex);
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}