/*

 * Copyright (c) 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

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

 * questions.

 *

 */

/*

 * @test

 * @summary When dumping the CDS archive, try to cause garbage collection while classes are being loaded.

 * @library /test/lib /test/hotspot/jtreg/runtime/appcds /test/hotspot/jtreg/runtime/appcds/test-classes

 * @requires vm.flavor != "minimal"

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

 *          jdk.jartool/sun.tools.jar

 *          java.management

 * @build GCDuringDumpTransformer Hello

 * @run main/othervm GCDuringDump

 */

import jdk.test.lib.cds.CDSOptions;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

public class GCDuringDump {

    public static String appClasses[] = {

        "Hello",

    };

    public static String agentClasses[] = {

        "GCDuringDumpTransformer",

    };

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

        String agentJar =

            ClassFileInstaller.writeJar("GCDuringDumpTransformer.jar",

                                        ClassFileInstaller.Manifest.fromSourceFile("GCDuringDumpTransformer.mf"),

                                        agentClasses);

        String appJar =

            ClassFileInstaller.writeJar("GCDuringDumpApp.jar", appClasses);

        String gcLog = "-Xlog:gc*=info,gc+region=trace,gc+alloc+region=debug";

        for (int i=0; i<2; i++) {

            // i = 0 -- run without agent = no extra GCs

            // i = 1 -- run with agent = cause extra GCs

            String extraArg = (i == 0) ? "-showversion" : "-javaagent:" + agentJar;

            TestCommon.testDump(appJar, TestCommon.list("Hello"),

                                extraArg, "-Xmx32m", gcLog);

            OutputAnalyzer output = TestCommon.execCommon(

                "-cp", appJar,

                "-Xmx32m",

                "-XX:+PrintSharedSpaces",

                gcLog,

                "Hello");

            TestCommon.checkExec(output);

        }

    }

}