1/*
2 * Copyright (c) 2013, 2016, 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 6181889
27 * @summary Empty try/finally results in bytecodes being generated
28 * @modules jdk.compiler
29 *          jdk.jdeps/com.sun.tools.javap
30 */
31
32import java.io.PrintWriter;
33import java.io.StringWriter;
34import java.nio.file.Paths;
35
36public class EmptyFinallyTest {
37    private static final String assertionErrorMsg =
38            "No \"Exception table\" should be generated in this case";
39
40    public static void main(String[] args) {
41        new EmptyFinallyTest().run();
42    }
43
44    void run() {
45        check("-c", Paths.get(System.getProperty("test.classes"),
46                "EmptyFinally.class").toString());
47    }
48
49    void check(String... params) {
50        StringWriter s;
51        String out;
52        try (PrintWriter pw = new PrintWriter(s = new StringWriter())) {
53            com.sun.tools.javap.Main.run(params, pw);
54            out = s.toString();
55        }
56        if (out.contains("Exception table")) {
57            throw new AssertionError(assertionErrorMsg);
58        }
59    }
60}
61
62class EmptyFinally {
63    void m() {
64        try {
65            System.out.println("EMPTY TRY!");
66        } finally {}
67    }
68}
69