}
@Override
public void execute(final Iterator<BoostrapStep> iterator, final AsyncCallback<Boolean> outcome) {
TextResource compat = TextResources.INSTANCE.compat();
JSONValue root = JSONParser.parseLenient(compat.getText());
JSONObject versionList = root.isObject();
Set<String> keys = versionList.keySet();
for(String key : keys)
{
modelVersions.put(key, versionList.get(key).isString().stringValue());