1 /* 2 * Copyright (c) 2005, 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 6175517 27 * @summary Check that Standard MBeans can change their MBeanNotificationInfo[] 28 * and MXBeans cannot 29 * @author Eamonn McManus 30 * @run clean ChangingNotifsTest 31 * @run build ChangingNotifsTest 32 * @run main ChangingNotifsTest 33 */ 34 35 import javax.management.*; 36 import java.util.Arrays; 37 38 public class ChangingNotifsTest { 39 public static interface EmptyMBean {} 40 41 public static interface EmptyMXBean {} 42 43 public static class Base extends NotificationBroadcasterSupport { 44 @Override 45 public MBeanNotificationInfo[] getNotificationInfo() { 46 MBeanNotificationInfo inf = 47 new MBeanNotificationInfo(new String[0], 48 Integer.toString(++called), 49 "description"); 50 return new MBeanNotificationInfo[] {inf}; 51 } 52 53 private static int called; 54 } 55 56 public static class Empty extends Base implements EmptyMBean {} 57 58 public static class EmptyMX extends Base implements EmptyMXBean {} 59 60 public static void main(String[] args) throws Exception { 61 MBeanServer mbs = MBeanServerFactory.newMBeanServer(); 62 ObjectName name = new ObjectName("a:b=c"); 63 for (boolean mx : new boolean[] {false, true}) 64 test(mbs, name, mx); 65 if (failure != null) 66 throw new Exception(failure); 67 System.out.println("TEST PASSED"); 68 } 69 70 private static void test(MBeanServer mbs, ObjectName name, boolean mx) 71 throws Exception { 72 Object mbean = mx ? new EmptyMX() : new Empty(); 73 String what = mx ? "MXBean" : "Standard MBean"; 74 mbs.registerMBean(mbean, name); 75 try { 76 MBeanInfo mbi = mbs.getMBeanInfo(name); 77 Descriptor d = mbi.getDescriptor(); 78 String immut = (String) d.getFieldValue("immutableInfo"); 79 boolean immutable = (immut != null && immut.equals("true")); 80 if (immutable != mx) { 81 fail(what + " has immutableInfo=" + immut + ", should be " + 82 mx); 83 return; 84 } 85 MBeanNotificationInfo[] n1 = mbi.getNotifications().clone(); 86 mbi = mbs.getMBeanInfo(name); 87 boolean unchanged = Arrays.deepEquals(mbi.getNotifications(), n1); 88 if (unchanged != mx) { 89 fail(what + " notif info " + 90 (unchanged ? "did not change" : "changed")); 91 return; 92 } 93 System.out.println("OK: " + what); 94 } finally { 95 mbs.unregisterMBean(name); 96 } 97 } 98 99 private static void fail(String why) { 100 failure = "FAILED: " + why; 101 System.out.println(failure); 102 } 103 104 private static String failure; 105 }