hotspot/test/gc/whitebox/TestConcMarkCycleWB.java
author dfazunen
Fri, 24 Jun 2016 19:52:31 +0400
changeset 39414 4adf52148100
parent 36851 03e2f4d0a421
child 40631 ed82623d7831
permissions -rw-r--r--
8160088: update hotspot tests depending on GC to use @requires vm.gc.X Reviewed-by: iignatyev, mchernov, dholmes
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/*
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 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test TestConMarkCycleWB
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 * @bug 8065579
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 * @requires vm.gc.G1
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 * @library /testlibrary /test/lib
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 * @modules java.base/jdk.internal.misc
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 *          java.compiler
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 *          java.management
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 *          jdk.jvmstat/sun.jvmstat.monitor
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 * @build ClassFileInstaller jdk.test.lib.* sun.hotspot.WhiteBox TestConcMarkCycleWB
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 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
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 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:+UseG1GC TestConcMarkCycleWB
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 * @summary Verifies that ConcurrentMarking-related WB works properly
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 */
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import static jdk.test.lib.Asserts.assertFalse;
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import static jdk.test.lib.Asserts.assertTrue;
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import sun.hotspot.WhiteBox;
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public class TestConcMarkCycleWB {
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    public static void main(String[] args) throws Exception {
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        WhiteBox wb = WhiteBox.getWhiteBox();
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        wb.youngGC();
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        assertTrue(wb.g1StartConcMarkCycle());
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        while (wb.g1InConcurrentMark()) {
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            Thread.sleep(5);
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        }
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        wb.fullGC();
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        assertTrue(wb.g1StartConcMarkCycle());
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        while (wb.g1InConcurrentMark()) {
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            Thread.sleep(5);
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        }
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        assertTrue(wb.g1StartConcMarkCycle());
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    }
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}