96 lines
2.9 KiB
Java
96 lines
2.9 KiB
Java
/*
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* Copyright (c) 2013, 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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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.lang.Class;
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import java.lang.String;
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import java.lang.System;
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import java.lang.management.ManagementFactory;
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import java.lang.management.RuntimeMXBean;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.CyclicBarrier;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.lang.reflect.Field;
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import java.lang.reflect.Modifier;
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import jdk.internal.vm.annotation.Contended;
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/*
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* @test
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* @bug 8015272
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* @summary \@Contended within the same group to use the same oop map
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*
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* @modules java.base/jdk.internal.vm.annotation
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* @run main/othervm -XX:-RestrictContended -XX:ContendedPaddingWidth=128 -Xmx128m OopMapsSameGroup
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*/
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public class OopMapsSameGroup {
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public static final int COUNT = 10000;
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public static void main(String[] args) throws Exception {
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Object o01 = new Object();
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Object o02 = new Object();
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Object o03 = new Object();
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Object o04 = new Object();
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R[] rs = new R[COUNT];
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for (int i = 0; i < COUNT; i++) {
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R r = new R();
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r.o01 = o01;
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r.o02 = o02;
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r.o03 = o03;
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r.o04 = o04;
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rs[i] = r;
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}
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System.gc();
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for (int i = 0; i < COUNT; i++) {
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R r = rs[i];
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if (r.o01 != o01) throw new Error("Test Error: o01");
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if (r.o02 != o02) throw new Error("Test Error: o02");
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if (r.o03 != o03) throw new Error("Test Error: o03");
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if (r.o04 != o04) throw new Error("Test Error: o04");
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}
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}
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public static class R {
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@Contended("group1")
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Object o01;
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@Contended("group1")
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Object o02;
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@Contended("group2")
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Object o03;
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@Contended("group2")
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Object o04;
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}
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}
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