javadoc for getPathBounds() in TreeUI and BasicTreeUI is incorrect

Summary

The javadoc description for javax.swing.plaf.TreeUI.getPathBounds() and javax.swing.plaf.basic.BasicTreeUI.getPathBounds() is misleading as it cites invalid conditions as valid

Problem

The javadoc descriptions for javax.swing.plaf.TreeUI.getPathBounds() and javax.swing.plaf.basic.BasicTreeUI.getPathBounds() stated the methods return null if any component in path is currently "valid".

Solution

The getPathBounds() in BasicTreeUI returns null if tree or treeState is null, so it should read "if any component in path is currently invalid"

Specification

src/java.desktop/share/classes/javax/swing/plaf/TreeUI.java

   /**
      * Returns the Rectangle enclosing the label portion that the
      * last item in path will be drawn into.  Will return null if
-     * any component in path is currently valid.
+     * any component in path is currently invalid.

public abstract Rectangle getPathBounds(JTree tree, TreePath path);

src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java

    /**
       * Returns the Rectangle enclosing the label portion that the
       * last item in path will be drawn into.  Will return null if
-      * any component in path is currently valid.
+      * any component in path is currently invalid.
       */
     public Rectangle getPathBounds(JTree tree, TreePath path) {