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comparison 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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20547:fffbcc20bf61 20553:417e3b8d04c5
1 /*
2 * Copyright (c) 2013, 2014, 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 8059100
27 * @summary Test that you can decrease NMT tracking level but not increase it.
28 * @key nmt
29 * @library /testlibrary /testlibrary/whitebox
30 * @build ChangeTrackingLevel
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
32 * sun.hotspot.WhiteBox$WhiteBoxPermission
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ChangeTrackingLevel
34 */
35
36 import com.oracle.java.testlibrary.*;
37 import sun.hotspot.WhiteBox;
38
39 public class ChangeTrackingLevel {
40
41 public static WhiteBox wb = WhiteBox.getWhiteBox();
42 public static void main(String args[]) throws Exception {
43 boolean testChangeLevel = wb.NMTChangeTrackingLevel();
44 if (testChangeLevel) {
45 System.out.println("NMT level change test passed.");
46 } else {
47 // it also fails if the VM asserts.
48 throw new RuntimeException("NMT level change test failed");
49 }
50 }
51 };