Sat, 22 Dec 2018 13:10:38 -0800
Added tag jdk8u202-b25 for changeset 15d8c732039b
1 /*
2 * Copyright (c) 2014, 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 */
24 /*
25 * @test
26 * @bug 8046060
27 * @summary Different results of floating point multiplication for lambda code block
28 */
30 import java.io.*;
31 import java.net.URL;
32 import com.sun.tools.classfile.*;
33 import static com.sun.tools.classfile.AccessFlags.ACC_STRICT;
35 public class LambdaTestStrictFPFlag {
36 public static void main(String[] args) throws Exception {
37 new LambdaTestStrictFPFlag().run();
38 }
40 void run() throws Exception {
41 ClassFile cf = getClassFile("LambdaTestStrictFPFlag$Test.class");
42 ConstantPool cp = cf.constant_pool;
43 boolean found = false;
44 for (Method meth: cf.methods) {
45 if (meth.getName(cp).startsWith("lambda$")) {
46 if ((meth.access_flags.flags & ACC_STRICT) == 0) {
47 throw new Exception("strict flag missing from lambda");
48 }
49 found = true;
50 }
51 }
52 if (!found) {
53 throw new Exception("did not find lambda method");
54 }
55 }
57 ClassFile getClassFile(String name) throws IOException, ConstantPoolException {
58 URL url = getClass().getResource(name);
59 InputStream in = url.openStream();
60 try {
61 return ClassFile.read(in);
62 } finally {
63 in.close();
64 }
65 }
67 class Test {
68 strictfp void test() {
69 Face itf = () -> { };
70 }
71 }
73 interface Face {
74 void m();
75 }
76 }