1/*
2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 8046060
27 * @summary Different results of floating point multiplication for lambda code block
28 * @modules jdk.jdeps/com.sun.tools.classfile
29 */
30
31import java.io.*;
32import java.net.URL;
33import com.sun.tools.classfile.*;
34import static com.sun.tools.classfile.AccessFlags.ACC_STRICT;
35
36public class LambdaTestStrictFPFlag {
37    public static void main(String[] args) throws Exception {
38        new LambdaTestStrictFPFlag().run();
39    }
40
41    void run() throws Exception {
42        ClassFile cf = getClassFile("LambdaTestStrictFPFlag$Test.class");
43        ConstantPool cp = cf.constant_pool;
44        boolean found = false;
45        for (Method meth: cf.methods) {
46            if (meth.getName(cp).startsWith("lambda$")) {
47                if ((meth.access_flags.flags & ACC_STRICT) == 0) {
48                    throw new Exception("strict flag missing from lambda");
49                }
50                found = true;
51            }
52        }
53        if (!found) {
54            throw new Exception("did not find lambda method");
55        }
56    }
57
58    ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
59        URL url = getClass().getResource(name);
60        InputStream in = url.openStream();
61        try {
62            return ClassFile.read(in);
63        } finally {
64            in.close();
65        }
66    }
67
68    class Test {
69        strictfp void test() {
70            Face itf = () -> { };
71        }
72    }
73
74    interface Face {
75        void m();
76    }
77}
78