AWEnvironmentStack environmentStack = env();
environmentStack.push(RadioValueKey, RadioDefaultKey);
super.applyValues(requestContext, component);
// get the radioSelection from the environment (put there
// by one of the RadioButtons) and push to the parent
Object radioSelection = environmentStack.pop(RadioValueKey);
if (RadioDefaultKey.equals(radioSelection)) {
radioSelection = null;
}
else {
while (!(RadioDefaultKey.equals(environmentStack.pop(RadioValueKey)))) {