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/*
 * @test Make sure loader constraints are passed from AOT preimage to final image.
 * @bug 8348426
 * @requires vm.cds.supports.aot.class.linking
 * @library /test/jdk/lib/testlibrary /test/lib
 * @build AOTLoaderConstraintsTest BootClass
 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar boot.jar BootClass
 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar AOTLoaderConstraintsTestApp.jar AOTLoaderConstraintsTestApp AppClass
 * @run driver AOTLoaderConstraintsTest AOT
 */

import jdk.test.lib.cds.CDSAppTester;
import jdk.test.lib.helpers.ClassFileInstaller;
import jdk.test.lib.process.OutputAnalyzer;

public class AOTLoaderConstraintsTest {
    static final String appJar = ClassFileInstaller.getJarPath("AOTLoaderConstraintsTestApp.jar");
    static final String mainClass = "AOTLoaderConstraintsTestApp";

    public static void main(String[] args) throws Exception {
        Tester t = new Tester();
        t.run(args);
    }

    static class Tester extends CDSAppTester {
        public Tester() {
            super(mainClass);
        }

        @Override
        public String classpath(RunMode runMode) {
            return appJar;
        }

        @Override
        public String[] vmArgs(RunMode runMode) {
            return new String[] {
                "-Xbootclasspath/a:boot.jar",
                "-Xlog:class+loader+constraints=debug",
                "-Xlog:class+path=debug",
            };
        }

        @Override
        public String[] appCommandLine(RunMode runMode) {
            return new String[] {
                mainClass,
            };
        }

        @Override
        public void checkExecution(OutputAnalyzer out, RunMode runMode) throws Exception {
            switch (runMode) {
            case RunMode.ASSEMBLY:   // JEP 485 + binary AOTConfiguration -- should load AppClass from preimage
            case RunMode.PRODUCTION:
                out.shouldContain("CDS add loader constraint for class AppClass symbol java/lang/String loader[0] 'app' loader[1] 'bootstrap'");
            }
        }
    }
}

class AOTLoaderConstraintsTestApp {
    public static void main(String args[]) throws Exception {
        AppClass obj = new AppClass();
        obj.func("Hello");
    }
}

class AppClass extends BootClass {
    @Override
    public void func(String s) {
        // This method overrides BootClass, which is loaded by the boot loader.
        // AppClass is loaded by the app loader. To make sure that you cannot use
        // type masquerade attacks, we need to add a loader constraint that says:
        //  app and boot loaders must resolve the symbol "java/lang/String" to the same type.
        super.func(s + " From AppClass");
    }
}