Index: javax/swing/plaf/basic/BasicTreeUI.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/plaf/basic/BasicTreeUI.java,v
retrieving revision 1.98
diff -u -r1.98 BasicTreeUI.java
--- javax/swing/plaf/basic/BasicTreeUI.java	14 Oct 2005 21:42:09 -0000	1.98
+++ javax/swing/plaf/basic/BasicTreeUI.java	14 Oct 2005 22:32:19 -0000
@@ -2749,6 +2749,8 @@
      */
     public void treeNodesChanged(TreeModelEvent e)
     {
+      validCachedPreferredSize = false;
+      tree.revalidate();
       tree.repaint();
     }
         
Index: javax/swing/tree/DefaultTreeModel.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/tree/DefaultTreeModel.java,v
retrieving revision 1.16
diff -u -r1.16 DefaultTreeModel.java
--- javax/swing/tree/DefaultTreeModel.java	1 Sep 2005 15:16:15 -0000	1.16
+++ javax/swing/tree/DefaultTreeModel.java	14 Oct 2005 22:32:19 -0000
@@ -299,6 +299,7 @@
   public void insertNodeInto(MutableTreeNode newChild, MutableTreeNode parent,
                              int index)
   {
+    newChild.setParent(parent);
     parent.insert(newChild, index);
     int[] childIndices = new int[1];
     childIndices[0] = index;