rfield@2528: /*
rfield@2528:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
rfield@2528:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
rfield@2528:  *
rfield@2528:  * This code is free software; you can redistribute it and/or modify it
rfield@2528:  * under the terms of the GNU General Public License version 2 only, as
rfield@2528:  * published by the Free Software Foundation.
rfield@2528:  *
rfield@2528:  * This code is distributed in the hope that it will be useful, but WITHOUT
rfield@2528:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
rfield@2528:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
rfield@2528:  * version 2 for more details (a copy is included in the LICENSE file that
rfield@2528:  * accompanied this code).
rfield@2528:  *
rfield@2528:  * You should have received a copy of the GNU General Public License version
rfield@2528:  * 2 along with this work; if not, write to the Free Software Foundation,
rfield@2528:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
rfield@2528:  *
rfield@2528:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
rfield@2528:  * or visit www.oracle.com if you need additional information or have any
rfield@2528:  * questions.
rfield@2528:  */
rfield@2528: 
rfield@2528: /*
rfield@2528:  * @test
rfield@2528:  * @bug 8046060
rfield@2528:  * @summary Different results of floating point multiplication for lambda code block
rfield@2528:  */
rfield@2528: 
rfield@2528: import java.io.*;
rfield@2528: import java.net.URL;
rfield@2528: import com.sun.tools.classfile.*;
rfield@2528: import static com.sun.tools.classfile.AccessFlags.ACC_STRICT;
rfield@2528: 
rfield@2528: public class LambdaTestStrictFPFlag {
rfield@2528:     public static void main(String[] args) throws Exception {
rfield@2528:         new LambdaTestStrictFPFlag().run();
rfield@2528:     }
rfield@2528: 
rfield@2528:     void run() throws Exception {
rfield@2528:         ClassFile cf = getClassFile("LambdaTestStrictFPFlag$Test.class");
rfield@2528:         ConstantPool cp = cf.constant_pool;
rfield@2528:         boolean found = false;
rfield@2528:         for (Method meth: cf.methods) {
rfield@2528:             if (meth.getName(cp).startsWith("lambda$")) {
rfield@2528:                 if ((meth.access_flags.flags & ACC_STRICT) == 0) {
rfield@2528:                     throw new Exception("strict flag missing from lambda");
rfield@2528:                 }
rfield@2528:                 found = true;
rfield@2528:             }
rfield@2528:         }
rfield@2528:         if (!found) {
rfield@2528:             throw new Exception("did not find lambda method");
rfield@2528:         }
rfield@2528:     }
rfield@2528: 
rfield@2528:     ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
rfield@2528:         URL url = getClass().getResource(name);
rfield@2528:         InputStream in = url.openStream();
rfield@2528:         try {
rfield@2528:             return ClassFile.read(in);
rfield@2528:         } finally {
rfield@2528:             in.close();
rfield@2528:         }
rfield@2528:     }
rfield@2528: 
rfield@2528:     class Test {
rfield@2528:         strictfp void test() {
rfield@2528:             Face itf = () -> { };
rfield@2528:         }
rfield@2528:     }
rfield@2528: 
rfield@2528:     interface Face {
rfield@2528:         void m();
rfield@2528:     }
rfield@2528: }