Mercurial > hg > truffle
annotate test/runtime/7196045/Test7196045.java @ 7236:579ee1eb0f30
fixed overly strong assertion
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 17 Dec 2012 11:12:25 +0100 |
parents | fab6fbf427d2 |
children | ac7193063af8 |
rev | line source |
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7196045: Possible JVM deadlock in ThreadTimesClosure when using HotspotInternal non-public API.
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1 /* |
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 /* |
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26 * @test |
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27 * @bug 7196045 |
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28 * @summary Possible JVM deadlock in ThreadTimesClosure when using HotspotInternal non-public API. |
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29 * @run main/othervm Test7196045 |
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30 */ |
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31 |
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32 import java.lang.management.ManagementFactory; |
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33 import javax.management.JMException; |
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34 import javax.management.MBeanServer; |
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35 import javax.management.MalformedObjectNameException; |
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36 import javax.management.ObjectName; |
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37 |
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38 public class Test7196045 { |
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39 |
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40 public static long duration = 1000 * 60 * 2; |
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41 private static final String HOTSPOT_INTERNAL = "sun.management:type=HotspotInternal"; |
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42 |
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43 public static void main(String[] args) { |
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44 |
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45 MBeanServer server = ManagementFactory.getPlatformMBeanServer(); |
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46 ObjectName objName= null; |
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47 try { |
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48 ObjectName hotspotInternal = new ObjectName(HOTSPOT_INTERNAL); |
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49 try { |
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50 server.registerMBean(new sun.management.HotspotInternal(), hotspotInternal); |
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51 } catch (JMException e) { |
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52 throw new RuntimeException("HotSpotWatcher: Failed to register the HotspotInternal MBean" + e); |
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53 } |
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54 objName= new ObjectName("sun.management:type=HotspotThreading"); |
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55 |
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56 } catch (MalformedObjectNameException e1) { |
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57 throw new RuntimeException("Bad object name" + e1); |
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58 } |
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59 |
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60 long endTime = System.currentTimeMillis() + duration; |
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61 long i = 0; |
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62 while (true) { |
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63 try { |
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64 server.getAttribute(objName, "InternalThreadCpuTimes"); |
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65 } catch (Exception ex) { |
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66 System.err.println("Exception while getting attribute: " + ex); |
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67 } |
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68 i++; |
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69 if (i % 10000 == 0) { |
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70 System.out.println("Successful iterations: " + i); |
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71 } |
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72 if (System.currentTimeMillis() > endTime) { |
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73 break; |
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74 } |
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75 } |
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76 System.out.println("PASSED."); |
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77 } |
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78 } |