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/*

 * @test

 * @summary Test that if package p2 in module m2x is exported to module m3x,

 *          then class p1.c1 in an unnamed module can not read p2.c2 in module m2x.

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

 * @library /test/lib

 * @compile myloaders/MySameClassLoader.java

 * @compile p2/c2.java

 * @compile p1/c1.java

 * @run main/othervm -Xbootclasspath/a:. Umod_ExpQualOther

 */

import static jdk.test.lib.Asserts.*;

import java.lang.module.Configuration;

import java.lang.module.ModuleDescriptor;

import java.lang.module.ModuleFinder;

import java.util.HashMap;

import java.util.Map;

import java.util.Set;

import myloaders.MySameClassLoader;

//

// ClassLoader1 --> defines m1x --> no packages

//                  defines m2x --> packages p2

//                  defines m3x --> packages p3

//

// m1x can read m2x

// package p2 in m2x is exported to m3x

//

// class p1.c1 defined in m1x tries to access p2.c2 defined in m2x

// Access denied since although m1x can read m2x, p2 is exported only to m3x.

//

public class Umod_ExpQualOther {

    // Define modules within this layer to test access between

    // publically defined classes within packages of those modules.

    public void createLayerOnBoot() throws Throwable {

        // Can read:          java.base, m2x, m3x

        // Packages:          none

        // Packages exported: none

        ModuleDescriptor descriptor_m1x =

                ModuleDescriptor.newModule("m1x")

                        .requires("java.base")

                        .requires("m2x")

                        .requires("m3x")

                        .build();

        // Define module:     m2x

        // Can read:          java.base

        // Packages:          p2

        // Packages exported: p2 is exported to m3x

        ModuleDescriptor descriptor_m2x =

                ModuleDescriptor.newModule("m2x")

                        .requires("java.base")

                        .exports("p2", Set.of("m3x"))

                        .build();

        // Define module:     m3x

        // Can read:          java.base

        // Packages:          p3

        // Packages exported: none

        ModuleDescriptor descriptor_m3x =

                ModuleDescriptor.newModule("m3x")

                        .requires("java.base")

                        .build();

        // Set up a ModuleFinder containing all modules for this layer.

        ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x, descriptor_m3x);

        // Resolves "m1x"

                .configuration()

                .resolve(finder, ModuleFinder.of(), Set.of("m1x"));

        // map each module to differing class loaders for this test

        Map<String, ClassLoader> map = new HashMap<>();

        map.put("m1x", MySameClassLoader.loader1);

        map.put("m2x", MySameClassLoader.loader1);

        map.put("m3x", MySameClassLoader.loader1);

        assertTrue(layer.findLoader("m1x") == MySameClassLoader.loader1);

        assertTrue(layer.findLoader("m2x") == MySameClassLoader.loader1);

        assertTrue(layer.findLoader("m3x") == MySameClassLoader.loader1);

        assertTrue(layer.findLoader("java.base") == null);

        // now use the same loader to load class p1.c1

        Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");

        try {

            p1_c1_class.newInstance();

            throw new RuntimeException("Failed to get IAE (p2 in m2x is exported to m3x, not unqualifiedly to everyone)");

        } catch (IllegalAccessError e) {

            System.out.println(e.getMessage());

            if (!e.getMessage().contains("does not export")) {

                throw new RuntimeException("Wrong message: " + e.getMessage());

            }

        }

    }

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

      Umod_ExpQualOther test = new Umod_ExpQualOther();

      test.createLayerOnBoot();

    }

}