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 }