ineNo">168</span>        assert w0 != null : "null w0";<a name="line.168"></a>
<span class="sourceLineNo">169</span>        assert w1 != null : "null w1";<a name="line.169"></a>
<span class="sourceLineNo">170</span>        assert w2 != null : "null w2";<a name="line.170"></a>
<span class="sourceLineNo">171</span>        assert w3 != null : "null w3";<a name="line.171"></a>
<span class="sourceLineNo">172</span>        assert w4 != null : "null w4";<a name="line.172"></a>
<span class="sourceLineNo">173</span>