95 lines
2.8 KiB
Java
95 lines
2.8 KiB
Java
/*
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* Copyright (c) 2011, 2018, 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
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* @key stress gc
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*
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* @summary converted from VM Testbase gc/hashcode/HashCodeSimpleTest.
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* VM Testbase keywords: [gc, stress, stressopt, nonconcurrent, jrockit]
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* VM Testbase readme:
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* DESCRIPTION
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* Hash code regressiontests.
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*
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* COMMENTS
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* This test was ported from JRockit test suite.
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*
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* @library /vmTestbase
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* /test/lib
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* @run driver jdk.test.lib.FileInstaller . .
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* @run main/othervm -XX:-UseGCOverheadLimit gc.hashcode.HashCodeSimpleTest.HashCodeSimpleTest
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*/
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package gc.hashcode.HashCodeSimpleTest;
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import nsk.share.TestFailure;
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import nsk.share.gc.GC;
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import nsk.share.gc.ThreadedGCTest;
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/**
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* Hash code regressiontests.
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*/
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public class HashCodeSimpleTest extends ThreadedGCTest {
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@Override
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protected Runnable createRunnable(int i) {
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/**
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* Test verifies that VM provided hashcodes are constant over invocations.
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* @return success if the test passes
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* failure if some hashvalue has changed
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*/
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return new Runnable() {
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long counter = 0;
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@Override
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public void run() {
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Object object = new Object();
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int hashCode0 = object.hashCode();
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for (int i = 0; i < 100; i++) {
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int hashCode = object.hashCode();
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if (hashCode != hashCode0) {
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throw new TestFailure("Repeated hash code queries broken: "
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+ hashCode0 + "!=" + hashCode);
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}
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}
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if (counter++ % 1000000 == 0) {
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log.info(counter / 1000000 + " million hashcodes verified");
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}
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}
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};
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}
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public static void main(String args[]) {
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GC.runTest(new HashCodeSimpleTest(), args);
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}
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}
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