Mercurial > hg > truffle
annotate test/runtime/7194254/Test7194254.java @ 12986:1b422ef5288a
8025728: Missing volatile specifier for field G1AllocRegion::_alloc_region
Summary: The field G1AllocRegion::_alloc_region needs to be declared volatile as it is used with that intention. Otherwise the compiler may generate the code that reloads the value which might have changed in the meantime, leading to spurious crashes.
Reviewed-by: iveresov, simonis, tschatzl
Contributed-by: Axel Siebenborn <axel.siebenborn@sap.com>
| author | tschatzl |
|---|---|
| date | Wed, 23 Oct 2013 10:23:06 +0200 |
| parents | 48087f745a86 |
| children |
| rev | line source |
|---|---|
| 6766 | 1 /* |
| 2 * Copyright (c) 2012, 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 7194254 | |
| 27 * @summary Creates several threads with different java priorities and checks | |
| 28 * whether jstack reports correct priorities for them. | |
| 29 * | |
|
6835
48087f745a86
7199186: runtime/7194254/Test7194254.java fails - wrong test name on @run
dholmes
parents:
6766
diff
changeset
|
30 * @run main Test7194254 |
| 6766 | 31 */ |
| 32 | |
| 33 import java.io.BufferedReader; | |
| 34 import java.io.InputStreamReader; | |
| 35 import java.lang.management.ManagementFactory; | |
| 36 import java.lang.management.RuntimeMXBean; | |
| 37 import java.util.ArrayList; | |
| 38 import java.util.List; | |
| 39 import java.util.concurrent.CyclicBarrier; | |
| 40 import java.util.regex.Matcher; | |
| 41 import java.util.regex.Pattern; | |
| 42 | |
| 43 public class Test7194254 { | |
| 44 | |
| 45 public static void main(String[] args) throws Exception { | |
| 46 final int NUMBER_OF_JAVA_PRIORITIES = | |
| 47 Thread.MAX_PRIORITY - Thread.MIN_PRIORITY + 1; | |
| 48 final CyclicBarrier barrier = | |
| 49 new CyclicBarrier(NUMBER_OF_JAVA_PRIORITIES + 1); | |
| 50 | |
| 51 for (int p = Thread.MIN_PRIORITY; p <= Thread.MAX_PRIORITY; ++p) { | |
| 52 final int priority = p; | |
| 53 new Thread("Priority=" + p) { | |
| 54 { | |
| 55 setPriority(priority); | |
| 56 } | |
| 57 public void run() { | |
| 58 try { | |
| 59 barrier.await(); // 1st | |
| 60 barrier.await(); // 2nd | |
| 61 } catch (Exception exc) { | |
| 62 // ignore | |
| 63 } | |
| 64 } | |
| 65 }.start(); | |
| 66 } | |
| 67 barrier.await(); // 1st | |
| 68 | |
| 69 int matches = 0; | |
| 70 List<String> failed = new ArrayList<>(); | |
| 71 try { | |
| 72 String pid = getPid(); | |
| 73 String jstack = System.getProperty("java.home") + "/../bin/jstack"; | |
| 74 Process process = new ProcessBuilder(jstack, pid) | |
| 75 .redirectErrorStream(true).start(); | |
| 76 Pattern pattern = Pattern.compile( | |
| 77 "\\\"Priority=(\\d+)\\\".* prio=(\\d+).*"); | |
| 78 try (BufferedReader reader = new BufferedReader( | |
| 79 new InputStreamReader(process.getInputStream()))) { | |
| 80 String line; | |
| 81 while((line = reader.readLine()) != null) { | |
| 82 Matcher matcher = pattern.matcher(line); | |
| 83 if (matcher.matches()) { | |
| 84 matches += 1; | |
| 85 String expected = matcher.group(1); | |
| 86 String actual = matcher.group(2); | |
| 87 if (!expected.equals(actual)) { | |
| 88 failed.add(line); | |
| 89 } | |
| 90 } | |
| 91 } | |
| 92 } | |
| 93 barrier.await(); // 2nd | |
| 94 } finally { | |
| 95 barrier.reset(); | |
| 96 } | |
| 97 | |
| 98 if (matches != NUMBER_OF_JAVA_PRIORITIES) { | |
| 99 throw new AssertionError("matches: expected " + | |
| 100 NUMBER_OF_JAVA_PRIORITIES + ", but was " + matches); | |
| 101 } | |
| 102 if (!failed.isEmpty()) { | |
| 103 throw new AssertionError(failed.size() + ":" + failed); | |
| 104 } | |
| 105 System.out.println("Test passes."); | |
| 106 } | |
| 107 | |
| 108 static String getPid() { | |
| 109 RuntimeMXBean runtimebean = ManagementFactory.getRuntimeMXBean(); | |
| 110 String vmname = runtimebean.getName(); | |
| 111 int i = vmname.indexOf('@'); | |
| 112 if (i != -1) { | |
| 113 vmname = vmname.substring(0, i); | |
| 114 } | |
| 115 return vmname; | |
| 116 } | |
| 117 | |
| 118 } | |
| 119 |