ceLineNo">051</span>        assert w1 != null : "null w1";<a name="line.51"></a>
<span class="sourceLineNo">052</span>        this.wrapper0 = w0;<a name="line.52"></a>
<span class="sourceLineNo">053</span>        this.wrapper1 = w1;<a name="line.53"></a>
<span class="sourceLineNo">054</span>    } // end constructor(Wrapper&lt;T0&gt;, Wrapper&lt;T1&gt;, Value)<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span>    /**<a name="line.56"></a>
<