1 /* 2 * Copyright (c) 2003, 2016, 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 4930397 27 * @summary Make sure MemoryMXBean has two notification types. 28 * @author Mandy Chung 29 * 30 * @modules jdk.management 31 * @run main GetMBeanInfo 32 */ 33 34 import java.lang.management.*; 35 import javax.management.*; 36 37 public class GetMBeanInfo { 38 private static final int EXPECTED_NOTIF_TYPES = 2; 39 private static int count = 0; 40 41 public static void main(String argv[]) throws Exception { 42 final ObjectName objName; 43 objName = new ObjectName(ManagementFactory.MEMORY_MXBEAN_NAME); 44 45 MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); 46 47 MBeanInfo minfo = mbs.getMBeanInfo(objName); 48 MBeanNotificationInfo[] notifs = minfo.getNotifications(); 49 for (int i = 0; i < notifs.length; i++) { 50 printNotifType(notifs[i]); 51 } 52 53 if (count != EXPECTED_NOTIF_TYPES) { 54 throw new RuntimeException("Unexpected number of notification types" 55 + " count = " + count + 56 " expected = " + EXPECTED_NOTIF_TYPES); 57 } 58 } 59 60 private static void printNotifType(MBeanNotificationInfo notif) { 61 String[] types = notif.getNotifTypes(); 62 for (int i = 0; i < types.length; i++) { 63 System.out.println(types[i]); 64 count++; 65 } 66 } 67 }