/*

 * Copyright (c) 2011, 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @summary  check that javac does not generate bridge methods for defaults

 */

import com.sun.tools.classfile.ClassFile;

import com.sun.tools.classfile.ConstantPool.*;

import com.sun.tools.classfile.Method;

import java.io.*;

public class TestNoBridgeOnDefaults {

    interface A<X> {

        default <Y> A<X> m(X x, Y y) { return Impl.<X,Y>m1(this, x, y); }

    }

    static abstract class B<X> implements A<X> { }

    interface C<X> extends A<X> {

        default <Y> C<X> m(X x, Y y) { return Impl.<X,Y>m2(this, x, y); }

    }

    static abstract class D<X> extends B<X> implements C<X> { }

    static class Impl {

       static <X, Y> A<X> m1(A<X> rec, X x, Y y) { return null; }

       static <X, Y> C<X> m2(C<X> rec, X x, Y y) { return null; }

    }

    static final String[] SUBTEST_NAMES = { B.class.getName() + ".class", D.class.getName() + ".class" };

    static final String TEST_METHOD_NAME = "m";

    public static void main(String... args) throws Exception {

        new TestNoBridgeOnDefaults().run();

    }

    public void run() throws Exception {

        String workDir = System.getProperty("test.classes");

        for (int i = 0 ; i < SUBTEST_NAMES.length ; i ++) {

            File compiledTest = new File(workDir, SUBTEST_NAMES[i]);

            checkNoBridgeOnDefaults(compiledTest);

        }

    }

    void checkNoBridgeOnDefaults(File f) {

        System.err.println("check: " + f);

        try {

            ClassFile cf = ClassFile.read(f);

            for (Method m : cf.methods) {

                String mname = m.getName(cf.constant_pool);

                if (mname.equals(TEST_METHOD_NAME)) {

                    throw new Error("unexpected bridge method found " + m);

                }

            }

        } catch (Exception e) {

            e.printStackTrace();

            throw new Error("error reading " + f +": " + e);

        }

    }

}