annotate test/runtime/8003720/Victim.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
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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
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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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
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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12 * version 2 for more details (a copy is included in the LICENSE file that
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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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
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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16 * 2 along with this work; if not, write to the Free Software Foundation,
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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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
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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20 * or visit www.oracle.com if you need additional information or have any
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated
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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 public class Victim implements Test8003720.CallMe {
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26 public void callme() {
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27 // note: Victim.this is dead here
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28 Test8003720.println("executing in loader=" + Victim.class.getClassLoader());
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29
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30 long now = System.currentTimeMillis();
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31
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32 while ((System.currentTimeMillis() - now) < Test8003720.DURATION) {
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33 long count = VictimClassLoader.counter++;
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34 if (count % 1000000 == 0) System.gc();
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35 if (count % 16180000 == 0) blurb();
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36 new Object[1].clone();
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37 }
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38 }
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39 static void blurb() {
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40 Test8003720.println("count=" + VictimClassLoader.counter);
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41 }
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42 static {
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43 blather();
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44 }
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45 static void blather() {
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46 new java.util.ArrayList<Object>(1000000);
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47 Class<Victim> c = Victim.class;
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48 Test8003720.println("initializing " + c + "#" + System.identityHashCode(c) + " in " + c.getClassLoader());
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49 }
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50 }