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 * 32 * @run main GetMBeanInfo 33 */ 34 35 import java.lang.management.*; 36 import javax.management.*; 37 38 public class GetMBeanInfo { 39 private static final int EXPECTED_NOTIF_TYPES = 2; 40 private static int count = 0; 41 42 public static void main(String argv[]) throws Exception { 43 final ObjectName objName; 44 objName = new ObjectName(ManagementFactory.MEMORY_MXBEAN_NAME); 45 46 MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); 47 48 MBeanInfo minfo = mbs.getMBeanInfo(objName); 49 MBeanNotificationInfo[] notifs = minfo.getNotifications(); 50 for (int i = 0; i < notifs.length; i++) { 51 printNotifType(notifs[i]); 52 } 53 54 if (count != EXPECTED_NOTIF_TYPES) { 55 throw new RuntimeException("Unexpected number of notification types" 56 + " count = " + count + 57 " expected = " + EXPECTED_NOTIF_TYPES); 58 } 59 } 60 61 private static void printNotifType(MBeanNotificationInfo notif) { 62 String[] types = notif.getNotifTypes(); 63 for (int i = 0; i < types.length; i++) { 64 System.out.println(types[i]); 65 count++; 66 } 67 } 68 }