1 /* 2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6295859 27 * @summary Check that a StandardMBean has immutableInfo=true if it is 28 * a NotificationBroadcasterSupport that doesn't override getNotificationInfo() 29 * @author Eamonn McManus 30 * @modules java.management 31 * @run clean ImmutableNotificationInfoTest 32 * @run build ImmutableNotificationInfoTest 33 * @run main ImmutableNotificationInfoTest 34 */ 35 import javax.management.Descriptor; 36 import javax.management.MBeanInfo; 37 import javax.management.MBeanNotificationInfo; 38 import javax.management.MBeanServer; 39 import javax.management.MBeanServerFactory; 40 import javax.management.NotificationBroadcaster; 41 import javax.management.NotificationBroadcasterSupport; 42 import javax.management.NotificationFilter; 43 import javax.management.NotificationListener; 44 import javax.management.ObjectName; 45 46 public class ImmutableNotificationInfoTest { 47 public interface UserBroadcasterMBean {} 48 public interface NoOverrideNBSMBean {} 49 public interface OverrideNBSMBean {} 50 51 public static class UserBroadcaster 52 implements UserBroadcasterMBean, NotificationBroadcaster { 53 public void removeNotificationListener(NotificationListener listener) { 54 } 55 56 public void addNotificationListener(NotificationListener listener, 57 NotificationFilter filter, Object handback) { 58 } 59 60 public MBeanNotificationInfo[] getNotificationInfo() { 61 return new MBeanNotificationInfo[0]; 62 } 63 } 64 65 public static class NoOverrideNBS extends NotificationBroadcasterSupport 66 implements NoOverrideNBSMBean { 67 } 68 69 public static class OverrideNBS extends NotificationBroadcasterSupport 70 implements OverrideNBSMBean { 71 public MBeanNotificationInfo[] getNotificationInfo() { 72 return new MBeanNotificationInfo[0]; 73 } 74 } 75 76 public static void main(String[] args) throws Exception { 77 boolean ok; 78 ok = test(new UserBroadcaster(), false); 79 ok &= test(new NoOverrideNBS(), true); 80 ok &= test(new OverrideNBS(), false); 81 if (!ok) 82 throw new Exception("TEST FAILED: immutability incorrect"); 83 } 84 85 private static boolean test(Object mbean, boolean expectImmutable) 86 throws Exception { 87 MBeanServer mbs = MBeanServerFactory.newMBeanServer(); 88 ObjectName on = new ObjectName("a:b=c"); 89 mbs.registerMBean(mbean, on); 90 MBeanInfo mbi = mbs.getMBeanInfo(on); 91 Descriptor d = mbi.getDescriptor(); 92 String immutableValue = (String) d.getFieldValue("immutableInfo"); 93 boolean immutable = ("true".equals(immutableValue)); 94 if (immutable != expectImmutable) { 95 System.out.println("FAILED: " + mbean.getClass().getName() + 96 " -> " + immutableValue); 97 return false; 98 } else { 99 System.out.println("OK: " + mbean.getClass().getName()); 100 return true; 101 } 102 } 103 }