/*

 * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

import java.io.PrintWriter;

import jdk.test.lib.JDKToolFinder;

import jdk.test.lib.Platform;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

/*

 * Test to verify GetObjectSize does not overflow on a 600M element int[]

 *

 * @test

 * @bug 8027230

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.compiler

 *          java.instrument

 *          java.management

 *          jdk.internal.jvmstat/sun.jvmstat.monitor

 * @build GetObjectSizeOverflowAgent

 * @run main ClassFileInstaller GetObjectSizeOverflowAgent

 * @run main GetObjectSizeOverflow

 */

public class GetObjectSizeOverflow {

    public static void main(String[] args) throws Exception  {

        if (!Platform.is64bit()) {

            System.out.println("Test needs a 4GB heap and can only be run as a 64bit process, skipping.");

            return;

        }

        PrintWriter pw = new PrintWriter("MANIFEST.MF");

        pw.println("Premain-Class: GetObjectSizeOverflowAgent");

        pw.close();

        ProcessBuilder pb = new ProcessBuilder();

        pb.command(new String[] { JDKToolFinder.getJDKTool("jar"), "cmf", "MANIFEST.MF", "agent.jar", "GetObjectSizeOverflowAgent.class"});

        pb.start().waitFor();

        ProcessBuilder pt = ProcessTools.createJavaProcessBuilder(true, "-Xmx4000m", "-javaagent:agent.jar",  "GetObjectSizeOverflowAgent");

        OutputAnalyzer output = new OutputAnalyzer(pt.start());

        if (output.getStdout().contains("Could not reserve enough space") || output.getStderr().contains("java.lang.OutOfMemoryError")) {

            System.out.println("stdout: " + output.getStdout());

            System.out.println("stderr: " + output.getStderr());

            System.out.println("Test could not reserve or allocate enough space, skipping");

            return;

        }

        output.stdoutShouldContain("GetObjectSizeOverflow passed");

    }

}