--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/management/Introspector/ChangingNotifsTest.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2005 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 6175517
+ * @summary Check that Standard MBeans can change their MBeanNotificationInfo[]
+ * and MXBeans cannot
+ * @author Eamonn McManus
+ * @run clean ChangingNotifsTest
+ * @run build ChangingNotifsTest
+ * @run main ChangingNotifsTest
+ */
+
+import javax.management.*;
+import java.util.Arrays;
+
+public class ChangingNotifsTest {
+    public static interface EmptyMBean {}
+
+    public static interface EmptyMXBean {}
+
+    public static class Base extends NotificationBroadcasterSupport {
+        @Override
+        public MBeanNotificationInfo[] getNotificationInfo() {
+            MBeanNotificationInfo inf =
+                new MBeanNotificationInfo(new String[0],
+                                          Integer.toString(++called),
+                                          "description");
+            return new MBeanNotificationInfo[] {inf};
+        }
+
+        private static int called;
+    }
+
+    public static class Empty extends Base implements EmptyMBean {}
+
+    public static class EmptyMX extends Base implements EmptyMXBean {}
+
+    public static void main(String[] args) throws Exception {
+        MBeanServer mbs = MBeanServerFactory.newMBeanServer();
+        ObjectName name = new ObjectName("a:b=c");
+        for (boolean mx : new boolean[] {false, true})
+            test(mbs, name, mx);
+        if (failure != null)
+            throw new Exception(failure);
+        System.out.println("TEST PASSED");
+    }
+
+    private static void test(MBeanServer mbs, ObjectName name, boolean mx)
+            throws Exception {
+        Object mbean = mx ? new EmptyMX() : new Empty();
+        String what = mx ? "MXBean" : "Standard MBean";
+        mbs.registerMBean(mbean, name);
+        try {
+            MBeanInfo mbi = mbs.getMBeanInfo(name);
+            Descriptor d = mbi.getDescriptor();
+            String immut = (String) d.getFieldValue("immutableInfo");
+            boolean immutable = (immut != null && immut.equals("true"));
+            if (immutable != mx) {
+                fail(what + " has immutableInfo=" + immut + ", should be " +
+                     mx);
+                return;
+            }
+            MBeanNotificationInfo[] n1 = mbi.getNotifications().clone();
+            mbi = mbs.getMBeanInfo(name);
+            boolean unchanged = Arrays.deepEquals(mbi.getNotifications(), n1);
+            if (unchanged != mx) {
+                fail(what + " notif info " +
+                     (unchanged ? "did not change" : "changed"));
+                return;
+            }
+            System.out.println("OK: " + what);
+        } finally {
+            mbs.unregisterMBean(name);
+        }
+    }
+
+    private static void fail(String why) {
+        failure = "FAILED: " + why;
+        System.out.println(failure);
+    }
+
+    private static String failure;
+}