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annotate test/runtime/NMT/ChangeTrackingLevel.java @ 20553:417e3b8d04c5

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8059100: SIGSEGV VirtualMemoryTracker::remove_released_region Summary: Disallow increasing native memory tracking level Reviewed-by: hseigel, ctornqvi, gtriantafill
author coleenp
date Fri, 10 Oct 2014 19:36:12 +0000
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20553
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1 /*
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2 * Copyright (c) 2013, 2014, 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 * @test
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26 * @bug 8059100
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27 * @summary Test that you can decrease NMT tracking level but not increase it.
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28 * @key nmt
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29 * @library /testlibrary /testlibrary/whitebox
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30 * @build ChangeTrackingLevel
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31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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32 * sun.hotspot.WhiteBox$WhiteBoxPermission
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33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ChangeTrackingLevel
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34 */
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35
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36 import com.oracle.java.testlibrary.*;
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37 import sun.hotspot.WhiteBox;
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38
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39 public class ChangeTrackingLevel {
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40
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41 public static WhiteBox wb = WhiteBox.getWhiteBox();
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42 public static void main(String args[]) throws Exception {
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43 boolean testChangeLevel = wb.NMTChangeTrackingLevel();
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44 if (testChangeLevel) {
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45 System.out.println("NMT level change test passed.");
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46 } else {
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47 // it also fails if the VM asserts.
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48 throw new RuntimeException("NMT level change test failed");
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49 }
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50 }
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51 };