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/*

 * @test

 * @summary Test that if module m1x can read module m2x, AND package p2 in m2x is

 *          exported qualifiedly to m1x, then class p1.c1 in m1x can read p2.c2 in m2x.

 *          However, p1.c1 tries to access a private method within p2.c2, verify

 *          that the IAE message contains the correct loader and module names.

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

 * @library /test/lib

 * @compile p1/c1.jasm

 * @compile p2/c2.jasm

 * @compile myloaders/MySameClassLoader.java

 * @run main/othervm -Xbootclasspath/a:. ExpQualToM1PrivateMethodIAE

 */

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;

public class ExpQualToM1PrivateMethodIAE {

    // Create a layer over the boot layer.

    // Define modules within this layer to test access between

    // publically defined classes within packages of those modules.

    public void createLayerOnBoot() throws Throwable {

        // Define module:     m1x

        // Can read:          java.base, m2x

        // Packages:          p1

        // Packages exported: p1 is exported unqualifiedly

        ModuleDescriptor descriptor_m1x =

                ModuleDescriptor.newModule("m1x")

                        .requires("java.base")

                        .requires("m2x")

                        .exports("p1")

                        .build();

        // Define module:     m2x

        // Can read:          java.base

        // Packages:          p2

        // Packages exported: p2 is exported qualifiedly to m1x

        ModuleDescriptor descriptor_m2x =

                ModuleDescriptor.newModule("m2x")

                        .requires("java.base")

                        .exports("p2", Set.of("m1x"))

                        .build();

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

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

        // Resolves "m1x"

        Configuration cf = ModuleLayer.boot()

                .configuration()

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

        // map each module to the same class loader for this test

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

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

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

        // Create layer that contains m1x & m2x

        ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get);

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

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

        // 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("Test Failed, an IAE should be thrown since p2/c2's method2 is private");

        } catch (IllegalAccessError e) {

            String message = e.getMessage();

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

            // java.lang.IllegalAccessError:

            //   tried to access method p2.c2.method2()V from class p1.c1 (p2.c2 is in module m2x of loader

            //   myloaders.MySameClassLoader @<id>; p1.c1 is in module m1x of loader myloaders.MySameClassLoader @<id>)

            if (!message.contains("class p1.c1 tried to access method p2.c2.method2()V (p1.c1 is in module m1x of loader myloaders.MySameClassLoader @") ||

                !message.contains("; p2.c2 is in module m2x of loader myloaders.MySameClassLoader @")) {

              throw new RuntimeException("Test Failed, an IAE was thrown with the wrong message: " + e.toString());

            }

        } catch (Throwable e) {

            throw new RuntimeException("Test Failed, an IAE should be thrown since p2/c2's method2 is private");

        }

    }

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

      ExpQualToM1PrivateMethodIAE test = new ExpQualToM1PrivateMethodIAE();

      test.createLayerOnBoot();

    }

}