title: How to cast a java.util.HashMap$Node object?
body: <p>I use a library method which returns a <code>java.util.HashMap$Node</code> object.<br>
  I have tried to cast it to <code>Map</code>, <code>HashMap</code>, or <code>Iterator</code> but they have all failed.<br>
  To what data type I can cast an object of type <code>java.util.HashMap$Node</code>?</p>