81 lines
2.6 KiB
Java
81 lines
2.6 KiB
Java
/*
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* Copyright (c) 2018, Red Hat, Inc. 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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/**
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* @test
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* @summary Test allocation of small object to result OOM, but not to crash JVM
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* @requires vm.gc.Shenandoah
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* @library /test/lib
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* @run driver TestAllocSmallObj
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*/
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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public class TestAllocSmallObj {
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static final int COUNT = 16 * 1024 * 1024;
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static volatile Object sink;
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public static void work() throws Exception {
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Object[] root = new Object[COUNT];
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sink = root;
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for (int c = 0; c < COUNT; c++) {
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root[c] = new Object();
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}
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}
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public static void main(String[] args) throws Exception {
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if (args.length > 0) {
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work();
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return;
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}
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{
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OutputAnalyzer analyzer = ProcessTools.executeLimitedTestJava(
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"-Xmx16m",
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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TestAllocSmallObj.class.getName(),
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"test");
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analyzer.shouldHaveExitValue(1);
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analyzer.shouldContain("java.lang.OutOfMemoryError: Java heap space");
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}
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{
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OutputAnalyzer analyzer = ProcessTools.executeLimitedTestJava(
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"-Xmx1g",
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"-XX:+UnlockExperimentalVMOptions",
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"-XX:+UseShenandoahGC",
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TestAllocSmallObj.class.getName(),
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"test");
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analyzer.shouldHaveExitValue(0);
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analyzer.shouldNotContain("java.lang.OutOfMemoryError: Java heap space");
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}
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}
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}
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