try {
String initMsg = SelectorConstants.INSTANCE.selectorDisplayer_initializing();
if (!StringUtils.isBlank(displayerSettings.getTitle())) initMsg += " '" + displayerSettings.getTitle() + "'";
displayMessage(initMsg + " ...");
dataSetHandler.lookupDataSet(new DataSetReadyCallback() {
public void callback(DataSet result) {
dataSet = result;
Widget w = createSelector();
panel.clear();
panel.add(w);