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 6175517 27 * @summary Check that Standard MBeans can change their MBeanNotificationInfo[] 28 * and MXBeans cannot 29 * @author Eamonn McManus 30 * 31 * @run clean ChangingNotifsTest 32 * @run build ChangingNotifsTest 33 * @run main ChangingNotifsTest 34 */ 35 36 import javax.management.*; 37 import java.util.Arrays; 38 39 public class ChangingNotifsTest { 40 public static interface EmptyMBean {} 41 42 public static interface EmptyMXBean {} 43 44 public static class Base extends NotificationBroadcasterSupport { 45 @Override 46 public MBeanNotificationInfo[] getNotificationInfo() { 47 MBeanNotificationInfo inf = 48 new MBeanNotificationInfo(new String[0], 49 Integer.toString(++called), 50 "description"); 51 return new MBeanNotificationInfo[] {inf}; 52 } 53 54 private static int called; 55 } 56 57 public static class Empty extends Base implements EmptyMBean {} 58 59 public static class EmptyMX extends Base implements EmptyMXBean {} 60 61 public static void main(String[] args) throws Exception { 62 MBeanServer mbs = MBeanServerFactory.newMBeanServer(); 63 ObjectName name = new ObjectName("a:b=c"); 64 for (boolean mx : new boolean[] {false, true}) 65 test(mbs, name, mx); 66 if (failure != null) 67 throw new Exception(failure); 68 System.out.println("TEST PASSED"); 69 } 70 71 private static void test(MBeanServer mbs, ObjectName name, boolean mx) 72 throws Exception { 73 Object mbean = mx ? new EmptyMX() : new Empty(); 74 String what = mx ? "MXBean" : "Standard MBean"; 75 mbs.registerMBean(mbean, name); 76 try { 77 MBeanInfo mbi = mbs.getMBeanInfo(name); 78 Descriptor d = mbi.getDescriptor(); 79 String immut = (String) d.getFieldValue("immutableInfo"); 80 boolean immutable = (immut != null && immut.equals("true")); 81 if (immutable != mx) { 82 fail(what + " has immutableInfo=" + immut + ", should be " + 83 mx); 84 return; 85 } 86 MBeanNotificationInfo[] n1 = mbi.getNotifications().clone(); 87 mbi = mbs.getMBeanInfo(name); 88 boolean unchanged = Arrays.deepEquals(mbi.getNotifications(), n1); 89 if (unchanged != mx) { 90 fail(what + " notif info " + 91 (unchanged ? "did not change" : "changed")); 92 return; 93 } 94 System.out.println("OK: " + what); 95 } finally { 96 mbs.unregisterMBean(name); 97 } 98 } 99 100 private static void fail(String why) { 101 failure = "FAILED: " + why; 102 System.out.println(failure); 103 } 104 105 private static String failure; 106 }