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

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 * particular file as subject to the "Classpath" exception as provided

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/*

 * @test

 * @summary Test with symbolic linked lib/modules

 * @bug 8220095

 * @requires (os.family == "solaris" | os.family == "linux" | os.family == "mac")

 * @library /test/lib

 * @modules java.management

 *          jdk.jlink

 * @run driver ModulesSymLink

 */

import java.io.File;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

public class ModulesSymLink {

    static String java_home;

    static String test_jdk;

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

        java_home = System.getProperty("java.home");

        test_jdk = System.getProperty("user.dir") + File.separator +

                   "modulessymlink_jdk" + Long.toString(System.currentTimeMillis());

        constructTestJDK();

        ProcessBuilder pb = new ProcessBuilder(

            test_jdk + File.separator + "bin" + File.separator + "java",

            "-version");

        OutputAnalyzer out = new OutputAnalyzer(pb.start());

        out.shouldHaveExitValue(0);

    }

    // 1) Create a test JDK binary (jlink is used to help simplify the process,

    //    alternatively a test JDK could be copied from JAVA_HOME.)

    // 2) Rename the test JDK's lib/modules to lib/0.

    // 3) Then create a link to lib/0 as lib/modules.

    static void constructTestJDK() throws Throwable {

        Path jlink = Paths.get(java_home, "bin", "jlink");

        System.out.println("Jlink = " + jlink);

        OutputAnalyzer out = ProcessTools.executeProcess(jlink.toString(),

                  "--output", test_jdk,

                  "--add-modules", "java.base");

        out.shouldHaveExitValue(0);

        Path modules = Paths.get(test_jdk, "lib", "modules");

        Path renamed_modules = Paths.get(test_jdk, "lib", "0");

        Files.move(modules, renamed_modules);

        Files.createSymbolicLink(modules, renamed_modules);

    }

}