/*

 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

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

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

/*

 * @test

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

 * @compile p2/c2.java

 * @compile p1/c1.java

 * @build sun.hotspot.WhiteBox

 * @compile/module=java.base java/lang/reflect/ModuleHelper.java

 * @run main ClassFileInstaller sun.hotspot.WhiteBox

 *                              sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI ExportTwice

 */

import java.lang.reflect.Module;

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

public class ExportTwice {

    // Check that a package can not be exported unqualifiedly, and then exported

    // to a specific package.

    // Also, check that a package can be exported to a specific package and then

    // exported unqualifiedly.

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

        Object m1, m2, m3;

        // Get the java.lang.reflect.Module object for module java.base.

        Class jlObject = Class.forName("java.lang.Object");

        Object jlObject_jlrM = jlObject.getModule();

        assertNotNull(jlObject_jlrM, "jlrModule object of java.lang.Object should not be null");

        // Get the class loader for ExportTwice and assume it's also used to

        // load classes p1.c1 and p2.c2.

        ClassLoader this_cldr = ExportTwice.class.getClassLoader();

        // Define a module for p1.

        m1 = ModuleHelper.ModuleObject("module1", this_cldr, new String[] { "p1" });

        assertNotNull(m1, "Module should not be null");

        ModuleHelper.DefineModule(m1, "9.0", "m1/here", new String[] { "p1" });

        ModuleHelper.AddReadsModule(m1, jlObject_jlrM);

        // Define a module for p2.

        m2 = ModuleHelper.ModuleObject("module2", this_cldr, new String[] { "p2" });

        assertNotNull(m2, "Module should not be null");

        ModuleHelper.DefineModule(m2, "9.0", "m2/there", new String[] { "p2" });

        ModuleHelper.AddReadsModule(m2, jlObject_jlrM);

        // Define a module for p3.

        m3 = ModuleHelper.ModuleObject("module3", this_cldr, new String[] { "p3" });

        assertNotNull(m3, "Module should not be null");

        ModuleHelper.DefineModule(m3, "9.0", "m3/there", new String[] { "p3" });

        ModuleHelper.AddReadsModule(m3, jlObject_jlrM);

        // Make package p1 in m1 visible to everyone.

        ModuleHelper.AddModuleExportsToAll(m1, "p1");

        // Try to export p1 only to m2 after it was exported unqualifiedly.  It

        // should silently succeed.

        ModuleHelper.AddModuleExports(m1, "p1", m2);

        // Export p2 to m3 then export it again unqualifiedly.

        ModuleHelper.AddModuleExports(m2, "p2", m3);

        ModuleHelper.AddModuleExportsToAll(m2, "p2");

        // p1.c1's ctor tries to call a method in p2.c2.  This should work because

        // p1's module can read p2's module and p2 is now exported unqualifiedly.

        ModuleHelper.AddReadsModule(m1, m2);

        Class p1_c1_class = Class.forName("p1.c1");

        p1_c1_class.newInstance();

    }

}