s="lineno">   42</span>&#160;  <span class="comment">// Keep reference to delegate to avoid GC to collect them early</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;  <span class="keyword">private</span> List&lt;LongToInt&gt; startEmptyPathCallbacks;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;  <span class="keyword">private</span> <a class="code" href="namespaceGoogle_1_1OrTools_1_1ConstraintSolver.html#a42930e1e81c7af41c87a