--- old/src/share/vm/trace/trace.xml	2013-04-15 09:52:06.425694500 +0200
+++ new/src/share/vm/trace/trace.xml	2013-04-15 09:52:05.630093100 +0200
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
- Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 
  This code is free software; you can redistribute it and/or modify it
@@ -109,6 +109,19 @@
       <value type="ADDRESS" field="address" label="Monitor Address" description="Address of object waited on" relation="JAVA_MONITOR_ADDRESS"/>
     </event>
 
+    <event id="ClassLoad" path="vm/class/load" label="Class Load"
+            has_thread="true" has_stacktrace="true" is_instant="false">
+      <value type="CLASS" field="loadedClass" label="Loaded Class"/>
+      <value type="CLASS" field="definingClassLoader" label="Defining Class Loader"/>
+      <value type="CLASS" field="initiatingClassLoader" label="Initiating Class Loader"/>
+    </event>
+
+    <event id="ClassUnload" path="vm/class/unload" label="Class Unload"
+        has_thread="true" is_instant="true">
+      <value type="CLASS" field="unloadedClass" label="Unloaded Class"/>
+      <value type="CLASS" field="definingClassLoader" label="Defining Class Loader"/>
+    </event>
+
     <struct id="VirtualSpace">
       <value type="ADDRESS" field="start" label="Start Address" description="Start address of the virtual space" />
       <value type="ADDRESS" field="committedEnd" label="Committed End Address" description="End address of the committed memory for the virtual space" />