/*

 * Copyright (c) 2014, 2016, 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.

 *

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 */

/*

 * @test

 * @bug 8001071

 * @summary Add simple range check into VM implemenation of Unsafe access methods

 * @library /test/lib

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

 *          java.management

 */

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.Platform;

import jdk.internal.misc.Unsafe;

public class RangeCheck {

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

        if (!Platform.isDebugBuild()) {

            System.out.println("Testing assert which requires a debug build. Passing silently.");

            return;

        }

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

                true,

                "-Xmx128m",

                "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",

                "-XX:-CreateCoredumpOnCrash",

                "-XX:-InlineUnsafeOps", // The compiler intrinsics doesn't have the assert

                DummyClassWithMainRangeCheck.class.getName());

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

        output.shouldMatch("assert\\(byte_offset < p_size\\) failed: Unsafe access: offset \\d+ > object's size \\d+");

    }

    public static class DummyClassWithMainRangeCheck {

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

            Unsafe unsafe = Unsafe.getUnsafe();

        }

    }

}