--- old/src/java.desktop/share/classes/javax/swing/tree/VariableHeightLayoutCache.java	2015-04-01 22:34:30.968472532 -0700
+++ new/src/java.desktop/share/classes/javax/swing/tree/VariableHeightLayoutCache.java	2015-04-01 22:34:30.808472529 -0700
@@ -88,6 +88,9 @@
     private Stack<Stack<TreePath>> tempStacks;
 
 
+    /**
+     * Constructs a {@code VariableHeightLayoutCache}.
+     */
     public VariableHeightLayoutCache() {
         super();
         tempStacks = new Stack<Stack<TreePath>>();