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/*

 * @test

 * @summary A few edge cases where there's no class to be included in the dynamic archive.

 * @requires vm.cds

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

 * @build StrConcatApp

 * @run driver ClassFileInstaller -jar strConcatApp.jar StrConcatApp

 * @run driver NoClassToArchive

 */

import java.io.File;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

public class NoClassToArchive extends DynamicArchiveTestBase {

    static final String warningMessage =

        "There is no class to be included in the dynamic archive";

    static final String classList = System.getProperty("test.classes") +

        File.separator + "NoClassToArchive.list";

    static final String appClass = "StrConcatApp";

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

        runTest(NoClassToArchive::testDefaultBase);

        runTest(NoClassToArchive::testCustomBase);

    }

    // (1) Test with default base archive + top archive

    static void testDefaultBase() throws Exception {

        String topArchiveName = getNewArchiveName("top");

        doTest(null, topArchiveName);

    }

    // (2) Test with custom base archive + top archive

    static void testCustomBase() throws Exception {

        String topArchiveName = getNewArchiveName("top2");

        String baseArchiveName = getNewArchiveName("base");

        doTestCustomBase(baseArchiveName, topArchiveName);

    }

    private static void checkWarning(OutputAnalyzer output) throws Exception {

        if (output.getStdout().contains("jrt:/") || output.getStdout().contains("unsafe anonymous")) {

            System.out.println("test skipped: this platform uses non-archived classes when running -version");

        } else {

            output.shouldContain(warningMessage);

        }

    }

    private static void doTest(String baseArchiveName, String topArchiveName) throws Exception {

        dump2(baseArchiveName, topArchiveName,

             "-Xlog:cds",

             "-Xlog:cds+dynamic=debug",

             "-Xlog:class+load=trace",

             "-version")

            .assertNormalExit(output -> checkWarning(output));

        dump2(baseArchiveName, topArchiveName,

             "-Xlog:cds",

             "-Xlog:cds+dynamic=debug",

             "-Xlog:class+load=trace",

             "-help")

            .assertNormalExit(output -> {

                    // some classes will be loaded from the java.base module

                    output.shouldContain("java.text.MessageFormat source: jrt:/java.base");

                });

    }

    private static void doTestCustomBase(String baseArchiveName, String topArchiveName) throws Exception {

        String appJar = ClassFileInstaller.getJarPath("strConcatApp.jar");

        // dump class list by running the StrConcatApp

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

            true,

            "-XX:DumpLoadedClassList=" + classList,

            "-cp",

            appJar,

            appClass);

        OutputAnalyzer output = TestCommon.executeAndLog(pb, "dumpClassList");

        TestCommon.checkExecReturn(output, 0, true, "length = 0");

        // create a custom base archive based on the class list

        dumpBaseArchive(baseArchiveName, "-XX:SharedClassListFile=" + classList);

        // create a dynamic archive with the custom base archive

        // no class should be included in the dynamic archive

        dump2(baseArchiveName, topArchiveName,

              "-Xlog:cds",

              "-Xlog:cds+dynamic=debug",

              "-Xlog:class+load=trace",

              "-version")

            .assertNormalExit(out -> checkWarning(out));

    }

}