1 /* 2 * Copyright (c) 2004, 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 5058319 27 * @summary Check if a RuntimeException is wrapped by RuntimeMBeanException 28 * only once. 29 * 30 * @requires vm.gc != "Z" 31 * @author Mandy Chung 32 * 33 * @build MXBeanException 34 * @run main MXBeanException 35 */ 36 37 import java.lang.management.*; 38 import javax.management.*; 39 import java.util.*; 40 import static java.lang.management.ManagementFactory.*; 41 42 public class MXBeanException { 43 private static MemoryPoolMXBean pool; 44 45 public static void main(String[] argv) throws Exception { 46 List<MemoryPoolMXBean> pools = 47 ManagementFactory.getMemoryPoolMXBeans(); 48 for (MemoryPoolMXBean p : pools) { 49 if (!p.isUsageThresholdSupported()) { 50 pool = p; 51 break; 52 } 53 } 54 55 // check if UnsupportedOperationException is thrown 56 try { 57 pool.setUsageThreshold(1000); 58 throw new RuntimeException("TEST FAILED: " + 59 "UnsupportedOperationException not thrown"); 60 } catch (UnsupportedOperationException e) { 61 // expected 62 } 63 64 // check if UnsupportedOperationException is thrown 65 // when calling through MBeanServer 66 MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); 67 ObjectName on = new ObjectName(MEMORY_POOL_MXBEAN_DOMAIN_TYPE + 68 ",name=" + pool.getName()); 69 Attribute att = new Attribute("UsageThreshold", 1000); 70 try { 71 mbs.setAttribute(on, att); 72 } catch (RuntimeMBeanException e) { 73 checkMBeanException(e); 74 } catch (RuntimeOperationsException e) { 75 checkMBeanException(e); 76 } 77 78 // check if UnsupportedOperationException is thrown 79 // when calling through proxy 80 81 MemoryPoolMXBean proxy = newPlatformMXBeanProxy(mbs, 82 on.toString(), 83 MemoryPoolMXBean.class); 84 try { 85 proxy.setUsageThreshold(1000); 86 throw new RuntimeException("TEST FAILED: " + 87 "UnsupportedOperationException not thrown via proxy"); 88 } catch (UnsupportedOperationException e) { 89 // expected 90 } 91 92 System.out.println("Test passed"); 93 } 94 95 private static void checkMBeanException(JMRuntimeException e) { 96 Throwable cause = e.getCause(); 97 if (!(cause instanceof UnsupportedOperationException)) { 98 throw new RuntimeException("TEST FAILED: " + cause + 99 "is not UnsupportedOperationException"); 100 } 101 } 102 }