wro4j-core/src/main/java/ro/isdc/wro/model/group/processor/Injector.java
private Collection<Field> getAllFields(final Object object) {
    final Collection<Field> fields = new ArrayList<Field>();
    fields.addAll(Arrays.asList(object.getClass().getDeclaredFields()));
    // inspect super classes
    Class<?> superClass = object.getClass().getSuperclass();
    while (superClass != null) {
      fields.addAll(Arrays.asList(superClass.getDeclaredFields()));
      superClass = superClass.getSuperclass();
    }
    return fields;
  }
private Collection<Field> getAllFields(final Object object) {
    final Collection<Field> fields = new ArrayList<Field>();
    fields.addAll(Arrays.asList(object.getClass().getDeclaredFields()));
    // inspect super classes
    Class<?> superClass = object.getClass().getSuperclass();
    while (superClass != null) {
      fields.addAll(Arrays.asList(superClass.getDeclaredFields()));
      superClass = superClass.getSuperclass();
    }
    return fields;
  }
Return all fields for given object, also those from the super classes.