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

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/*

 * @test

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

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

 * @requires vm.cds

 * @requires vm.flavor != "minimal"

 * @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 = Boolean.getBoolean("test.cds.verbose.gc") ?

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

        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;

            String extraOption = (i == 0) ? "-showversion" : "-XX:+AllowArchivingWithJavaAgent";

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

                                "-XX:+UnlockDiagnosticVMOptions", extraOption,

                                extraArg, "-Xmx32m", gcLog);

            TestCommon.run(

                "-cp", appJar,

                "-Xmx32m",

                "-XX:+PrintSharedSpaces",

                "-XX:+UnlockDiagnosticVMOptions", extraOption,

                gcLog,

                "Hello")

              .assertNormalExit();

        }

    }

}