CheckBox pushSetting = new CheckBox("Push enabled");
pushSetting.setValue(Boolean.valueOf(getPushConfiguration()
.getPushMode().isEnabled()));
pushSetting.setImmediate(true);
pushSetting.addValueChangeListener(new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
if (event.getProperty().getValue() == Boolean.TRUE) {
getPushConfiguration().setPushMode(PushMode.AUTOMATIC);
} else {