/*

 * 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import sun.hotspot.code.Compiler;

import java.util.ArrayList;

import java.util.List;

import jdk.test.lib.apps.LingeredApp;

/**

 * @test

 * @summary Test the 'universe' command of jhsdb clhsdb.

 * @requires vm.hasSAandCanAttach & vm.gc != "Z"

 * @bug 8190307

 * @library /test/lib

 * @build jdk.test.lib.apps.*

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. TestUniverse withoutZ

 */

/**

 * @test

 * @summary Test the 'universe' command of jhsdb clhsdb.

 * @requires vm.hasSAandCanAttach & vm.gc == "Z"

 * @bug 8190307

 * @library /test/lib

 * @build jdk.test.lib.apps.*

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. TestUniverse withZ

 */

public class TestUniverse {

    private static void testClhsdbForUniverse(long lingeredAppPid,

                                              String gc) throws Exception {

        }

        if (gc.contains("G1GC")) {

        }

        if (gc.contains("UseConcMarkSweepGC")) {

        }

        if (gc.contains("UseSerialGC")) {

        }

        if (gc.contains("UseParallelGC")) {

        }

        if (gc.contains("UseEpsilonGC")) {

        }

    }

    public static void test(String gc) throws Exception {

        LingeredApp app = null;

        try {

            List<String> vmArgs = new ArrayList<String>();

            vmArgs.add("-XX:+UnlockExperimentalVMOptions"); // unlock experimental GCs

            vmArgs.add(gc);

            app = LingeredApp.startApp(vmArgs);

            System.out.println ("Started LingeredApp with the GC option " + gc +

                                " and pid " + app.getPid());

            testClhsdbForUniverse(app.getPid(), gc);

        } finally {

            LingeredApp.stopApp(app);

        }

    }

    public static void main (String... args) throws Exception {

        try {

            test("-XX:+UseG1GC");

            test("-XX:+UseParallelGC");

            test("-XX:+UseSerialGC");

            if (!Compiler.isGraalEnabled()) { // Graal does not support all GCs

                test("-XX:+UseConcMarkSweepGC");

                if (args[0].equals("withZ")) {

                    test("-XX:+UseZGC");

                }

                test("-XX:+UseEpsilonGC");

            }

        } catch (Exception e) {

            throw new Error("Test failed with " + e);

        }

    }

}