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