@@ -0,0 +1,301 @@
+package kalang.lang;%0A%0A/**%0A * @author KasonYang%0A */%0Apublic class Ref%3CT%3E %7B%0A%0A    private T value;%0A%0A    public Ref() %7B%0A    %7D%0A%0A    public Ref(T value) %7B%0A        this.value = value;%0A    %7D%0A%0A    public T get() %7B%0A        return value;%0A    %7D%0A%0A    public void set(T value) %7B%0A        this.value = value;%0A    %7D%0A%0A%7D%0A

add Ref class