jdk

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/*
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 * Copyright (c) 2014, 2023, 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 to verify GetObjectSize does not overflow on a 600M element int[]
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 *
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 * @test
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 * @bug 8027230
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 * @library /test/lib
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 * @modules java.base/jdk.internal.misc
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 *          java.compiler
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 *          java.instrument
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 *          java.management
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 *          jdk.internal.jvmstat/sun.jvmstat.monitor
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 * @requires vm.bits == 64
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 * @requires vm.jvmti
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 * @requires os.maxMemory > 6G
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 * @build GetObjectSizeOverflowAgent
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 * @run driver jdk.test.lib.helpers.ClassFileInstaller GetObjectSizeOverflowAgent
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 * @run driver GetObjectSizeOverflow
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 */
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import java.io.PrintWriter;
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import jdk.test.lib.JDKToolFinder;
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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 GetObjectSizeOverflow {
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    public static void main(String[] args) throws Exception  {
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        try (var pw = new PrintWriter("MANIFEST.MF")) {
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            pw.println("Premain-Class: GetObjectSizeOverflowAgent");
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        }
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        var jar = new ProcessBuilder(JDKToolFinder.getJDKTool("jar"), "cmf", "MANIFEST.MF", "agent.jar", "GetObjectSizeOverflowAgent.class");
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        new OutputAnalyzer(jar.start()).shouldHaveExitValue(0);
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        ProcessBuilder pt = ProcessTools.createTestJavaProcessBuilder("-Xmx4000m", "-javaagent:agent.jar",  "GetObjectSizeOverflowAgent");
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        OutputAnalyzer output = new OutputAnalyzer(pt.start());
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        output.stdoutShouldContain("GetObjectSizeOverflow passed");
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        output.shouldHaveExitValue(0);
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    }
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}
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