code: public FaceletTaglibTagBehaviorType<FaceletTaglibTagType<T>> getOrCreateBehavior()
     {
        Node node = childNode.getOrCreate("behavior");
        FaceletTaglibTagBehaviorType<FaceletTaglibTagType<T>> behavior = new FaceletTaglibTagBehaviorTypeImpl<FaceletTaglibTagType<T>>(this, "behavior", childNode, node);
        return behavior;
     }
docs: If not already created, a new <code>behavior</code> element with the given value will be created.
  Otherwise, the existing <code>behavior</code> element will be returned.
  @return  a new or existing instance of <code>FaceletTaglibTagBehaviorType<FaceletTaglibTagType<T>></code>