diff -r fd16c54261b3 -r 90ce3da70b43 jdk/test/javax/management/loading/SystemClassLoaderTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/management/loading/SystemClassLoaderTest.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4839389
+ * @summary Test that a class can load MBeans from its class loader
+ * (at least if it is the system class loader)
+ * @author Eamonn McManus
+ * @run clean SystemClassLoaderTest
+ * @run build SystemClassLoaderTest
+ * @run main SystemClassLoaderTest
+ */
+
+import javax.management.MBeanServer;
+import javax.management.MBeanServerFactory;
+import javax.management.ObjectName;
+
+/* Test that we can load an MBean using createMBean(className, objectName)
+   even if the class of the MBean is not known to the JMX class loader.  */
+public class SystemClassLoaderTest {
+
+    public static void main(String[] args) throws Exception {
+        // Instantiate the MBean server
+        //
+        System.out.println("Create the MBean server");
+        MBeanServer mbs = MBeanServerFactory.createMBeanServer();
+
+        ClassLoader mbsClassLoader = mbs.getClass().getClassLoader();
+
+        String testClassName = Test.class.getName();
+
+        // Check that the MBeanServer class loader does not know our test class
+        try {
+            Class.forName(testClassName, true, mbsClassLoader);
+            System.out.println("TEST IS INVALID: MBEANSERVER'S CLASS LOADER " +
+                               "KNOWS OUR TEST CLASS");
+            System.exit(1);
+        } catch (ClassNotFoundException e) {
+            // As required
+        }
+
+        // Register the MBean
+        //
+        System.out.println("Create MBean from this class");
+        ObjectName objectName = new ObjectName("whatever:type=whatever");
+        mbs.createMBean(testClassName, objectName);
+        // Test OK!
+        //
+        System.out.println("Bye! Bye!");
+    }
+
+    public static class Test implements TestMBean {
+        public Test() {}
+    }
+
+    public static interface TestMBean {}
+}