/*

 * 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

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

 * questions.

 */

/*

 * @test

 * $bug 8087223

 * @summary Adding constantTag to keep method call consistent with it.

 * @modules java.base/jdk.internal.org.objectweb.asm

 *          java.base/jdk.internal.misc

 *          java.management

 * @compile -XDignore.symbol.file IntfMethod.java

 * @run main/othervm IntfMethod

 * @run main/othervm -Xint IntfMethod

 * @run main/othervm -Xcomp IntfMethod

 */

import jdk.internal.org.objectweb.asm.*;

import java.io.FileOutputStream;

import java.lang.reflect.InvocationTargetException;

import static jdk.internal.org.objectweb.asm.Opcodes.*;

public class IntfMethod {

    static byte[] dumpC() {

        ClassWriter cw = new ClassWriter(0);

        cw.visit(52, ACC_PUBLIC | ACC_SUPER, "C", null, "java/lang/Object", new String[]{"I"});

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);

            mv.visitCode();

            mv.visitVarInsn(ALOAD, 0);

            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);

            mv.visitInsn(RETURN);

            mv.visitMaxs(1, 1);

            mv.visitEnd();

        }

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testSpecialIntf", "()V", null, null);

            mv.visitCode();

            mv.visitVarInsn(ALOAD, 0);

            mv.visitMethodInsn(INVOKESPECIAL, "I", "f1", "()V", /*itf=*/false);

            mv.visitInsn(RETURN);

            mv.visitMaxs(1, 1);

            mv.visitEnd();

        }

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticIntf", "()V", null, null);

            mv.visitCode();

            mv.visitMethodInsn(INVOKESTATIC, "I", "f2", "()V", /*itf=*/false);

            mv.visitInsn(RETURN);

            mv.visitMaxs(1, 1);

            mv.visitEnd();

        }

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testSpecialClass", "()V", null, null);

            mv.visitCode();

            mv.visitVarInsn(ALOAD, 0);

            mv.visitMethodInsn(INVOKESPECIAL, "C", "f1", "()V", /*itf=*/true);

            mv.visitInsn(RETURN);

            mv.visitMaxs(1, 1);

            mv.visitEnd();

        }

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null);

            mv.visitCode();

            mv.visitInsn(RETURN);

            mv.visitMaxs(0, 1);

            mv.visitEnd();

        }

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticClass", "()V", null, null);

            mv.visitCode();

            mv.visitMethodInsn(INVOKESTATIC, "C", "f2", "()V", /*itf=*/true);

            mv.visitInsn(RETURN);

            mv.visitMaxs(1, 1);

            mv.visitEnd();

        }

        cw.visitEnd();

        return cw.toByteArray();

    }

    static byte[] dumpI() {

        ClassWriter cw = new ClassWriter(0);

        cw.visit(52, ACC_PUBLIC | ACC_ABSTRACT | ACC_INTERFACE, "I", null, "java/lang/Object", null);

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "f1", "()V", null, null);

            mv.visitCode();

            mv.visitInsn(RETURN);

            mv.visitMaxs(0, 1);

            mv.visitEnd();

        }

        {

            MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null);

            mv.visitCode();

            mv.visitInsn(RETURN);

            mv.visitMaxs(0, 1);

            mv.visitEnd();

        }

        cw.visitEnd();

        return cw.toByteArray();

    }

    static class CL extends ClassLoader {

        @Override

        protected Class<?> findClass(String name) throws ClassNotFoundException {

            byte[] classFile;

            switch (name) {

                case "I": classFile = dumpI(); break;

                case "C": classFile = dumpC(); break;

                default:

                    throw new ClassNotFoundException(name);

            }

            return defineClass(name, classFile, 0, classFile.length);

        }

    }

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

        Class<?> cls = (new CL()).loadClass("C");

        try (FileOutputStream fos = new FileOutputStream("I.class")) { fos.write(dumpI()); }

        try (FileOutputStream fos = new FileOutputStream("C.class")) { fos.write(dumpC()); }

        int success = 0;

        for (String name : new String[] { "testSpecialIntf", "testStaticIntf", "testSpecialClass", "testStaticClass"}) {

            System.out.printf("%s: ", name);

            try {

                cls.getMethod(name).invoke(cls.newInstance());

                System.out.println("FAILED - ICCE not thrown");

            } catch (Throwable e) {

                if (e instanceof InvocationTargetException &&

                    e.getCause() != null && e.getCause() instanceof IncompatibleClassChangeError) {

                    System.out.println("PASSED - expected ICCE thrown");

                    success++;

                    continue;

                }

            }

        }

        if (success != 4) throw new Exception("Failed to catch ICCE");

    }

}