/*

 * Copyright (c) 2014, 2015, 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 8046060

 * @summary Different results of floating point multiplication for lambda code block

 */

import java.io.*;

import java.net.URL;

import com.sun.tools.classfile.*;

import static com.sun.tools.classfile.AccessFlags.ACC_STRICT;

public class LambdaTestStrictFPFlag {

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

        new LambdaTestStrictFPFlag().run();

    }

    void run() throws Exception {

        ClassFile cf = getClassFile("LambdaTestStrictFPFlag$Test.class");

        ConstantPool cp = cf.constant_pool;

        boolean found = false;

        for (Method meth: cf.methods) {

            if (meth.getName(cp).startsWith("lambda$")) {

                if ((meth.access_flags.flags & ACC_STRICT) == 0) {

                    throw new Exception("strict flag missing from lambda");

                }

                found = true;

            }

        }

        if (!found) {

            throw new Exception("did not find lambda method");

        }

    }

    ClassFile getClassFile(String name) throws IOException, ConstantPoolException {

        URL url = getClass().getResource(name);

        InputStream in = url.openStream();

        try {

            return ClassFile.read(in);

        } finally {

            in.close();

        }

    }

    class Test {

        strictfp void test() {

            Face itf = () -> { };

        }

    }

    interface Face {

        void m();

    }

}