/*

 * Copyright (c) 2013, 2019, 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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 */

package gc.arguments;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.Platform;

/*

 * @test

 * @bug 8015107

 * @summary Tests that VM prints a warning when -XX:CompressedClassSpaceSize

 *          is used together with -XX:-UseCompressedClassPointers

 * @library /test/lib

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

 *          java.management

 * @run main gc.arguments.TestCompressedClassFlags

 */

public class TestCompressedClassFlags {

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

        if (Platform.is64bit()) {

            OutputAnalyzer output = runJava("-XX:CompressedClassSpaceSize=1g",

                                            "-XX:-UseCompressedClassPointers",

                                            "-version");

            output.shouldContain("warning");

            output.shouldNotContain("error");

            output.shouldHaveExitValue(0);

        }

    }

    private static OutputAnalyzer runJava(String ... args) throws Exception {

        return new OutputAnalyzer(pb.start());

    }

}