141 lines
3.7 KiB
Java
141 lines
3.7 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/gctests/BigChains.
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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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* Creates big chains of allocated objects, with a mix of objects
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* with and without finalizers.
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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.gctests.BigChains.BigChains
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*/
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package gc.gctests.BigChains;
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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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* Test ported from dev test suite. Creates big chains of
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* allocated objects, with a mix of objects with and without
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* finalizers.
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*/
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public class BigChains extends ThreadedGCTest {
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public static void main(String[] args) {
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GC.runTest(new BigChains(), args);
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}
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@Override
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protected Runnable createRunnable(int i) {
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return new Runnable() {
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/**
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* Create a big chain of mixed objects and make sure nothing
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* crashes.
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*
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* @return success if the program test could run without any
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* problems.
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*/
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public void run() {
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createChain(100000, true);
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int i = 0;
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while (i++ < 100) {
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createChain(10000, false);
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}
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}
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private void createChain(int noof, boolean firstIsFinalizable) {
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BaseClass first;
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if (firstIsFinalizable) {
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first = new FinalizerYes();
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} else {
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first = new FinalizerNo();
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}
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BaseClass current = first;
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for (int i = 0; i < noof; i++) {
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current.next = new FinalizerNo();
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current = current.next;
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}
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current.next = first;
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}
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};
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}
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}
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/**
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* Helper base class for the BigChains test.
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*/
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class BaseClass {
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/**
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* Base class.
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*/
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public BaseClass next;
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}
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/**
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* Helper class withfinalizer and counter for number of
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* calls to the finalize() method.
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*/
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class FinalizerYes extends BaseClass {
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private static int noOfFinalized = 0;
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/**
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* Finalizer for the help class, that increments a counter
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* for each call to this method.
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*/
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public final void finalize() {
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synchronized (this.getClass()) {
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FinalizerYes.noOfFinalized++;
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}
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}
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}
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/**
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* Helper class without finalizer.
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*/
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class FinalizerNo extends BaseClass {
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}
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