--- old/src/share/classes/com/sun/tools/attach/VirtualMachine.java	2013-02-21 17:47:06.952648903 +0000
+++ new/src/share/classes/com/sun/tools/attach/VirtualMachine.java	2013-02-21 17:47:06.656648910 +0000
@@ -102,6 +102,7 @@
  * @since 1.6
  */
 
+@jdk.Supported
 public abstract class VirtualMachine {
     private AttachProvider provider;
     private String id;