private static void collectFields(final Class clazz, final ArrayList<Field> result) {
final Field[] fields = clazz.getDeclaredFields();
result.addAll(Arrays.asList(fields));
final Class superClass = clazz.getSuperclass();
if (superClass != null) {
collectFields(superClass, result);
}
final Class[] interfaces = clazz.getInterfaces();
for (Class each : interfaces) {
collectFields(each, result);
}
}
public static ArrayList<Field> collectFields(Class clazz) {
ArrayList<Field> result = new ArrayList<Field>();
collectFields(clazz, result);
return result;
}