Description: Fixes the compilation errors with Java 9
Author: Emmanuel Bourg <ebourg@apache.org>
Forwarded: no
--- a/src/org/jaudiotagger/audio/mp4/Mp4AtomTree.java
+++ b/src/org/jaudiotagger/audio/mp4/Mp4AtomTree.java
@@ -250,7 +250,7 @@
     @SuppressWarnings("unchecked")
     public void printAtomTree()
     {
-        Enumeration<DefaultMutableTreeNode> e = rootNode.preorderEnumeration();
+        Enumeration<DefaultMutableTreeNode> e = (Enumeration) rootNode.preorderEnumeration();
         DefaultMutableTreeNode nextNode;
         while (e.hasMoreElements())
         {