Sat, 22 Dec 2018 13:10:38 -0800
Added tag jdk8u202-b25 for changeset 15d8c732039b
1 /*
2 * Copyright (c) 1999, 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 4057345 4120016 4120014
27 * @summary try-catch 1: Verify that overzealous dead-code elimination no
28 * longer removes live code.
29 * @author dps
30 *
31 * @run clean DeadCode1
32 * @run compile -O DeadCode1.java
33 * @run main DeadCode1
34 */
36 public class DeadCode1
37 {
38 public static int test() {
39 Object[] arrayref = null;
40 try {
41 Object obj = arrayref[0];
42 return 2;
43 } catch (NullPointerException e) {
44 return 0;
45 }
46 }
49 public static void main(String[] args) {
50 int ret = test();
51 if (ret == 2)
52 throw new RuntimeException("test() = 2; accidental removal of live code");
53 else
54 System.out.println("correct dead-code elimination");
55 }
56 }