Fri, 24 Apr 2020 03:58:51 +0100
Merge
2 import java.io.PrintWriter;
3 import java.io.StringWriter;
4 import java.nio.file.Paths;
6 /*
7 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
8 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
9 *
10 * This code is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 only, as
12 * published by the Free Software Foundation.
13 *
14 * This code is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 * version 2 for more details (a copy is included in the LICENSE file that
18 * accompanied this code).
19 *
20 * You should have received a copy of the GNU General Public License version
21 * 2 along with this work; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
23 *
24 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
25 * or visit www.oracle.com if you need additional information or have any
26 * questions.
27 */
29 /*
30 * @test
31 * @bug 6181889
32 * @summary Empty try/finally results in bytecodes being generated
33 */
35 public class EmptyFinallyTest {
36 private static final String assertionErrorMsg =
37 "No \"Exception table\" should be generated in this case";
39 public static void main(String[] args) {
40 new EmptyFinallyTest().run();
41 }
43 void run() {
44 check("-c", Paths.get(System.getProperty("test.classes"),
45 "EmptyFinally.class").toString());
46 }
48 void check(String... params) {
49 StringWriter s;
50 String out;
51 try (PrintWriter pw = new PrintWriter(s = new StringWriter())) {
52 com.sun.tools.javap.Main.run(params, pw);
53 out = s.toString();
54 }
55 if (out.contains("Exception table")) {
56 throw new AssertionError(assertionErrorMsg);
57 }
58 }
59 }
61 class EmptyFinally {
62 void m() {
63 try {
64 System.out.println("EMPTY TRY!");
65 } finally {}
66 }
67 }