Thu, 30 Jul 2009 10:29:53 +0100
6827648: Extremely slow compilation time for visitor pattern code + generics
Summary: Javac unnecessarily recomputates type-substitutions multiple times
Reviewed-by: jjg
1 /*
2 * Copyright 2001 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
24 /*
25 * @test
26 * @bug 4478095
27 * @summary assertion flag attached to wrong class
28 * @author gafter
29 */
31 public class Attach {
32 public static void main(String[] args) {
33 Attach.class.getClassLoader().
34 setClassAssertionStatus("Attach", false);
35 if (V.assertsEnabled())
36 throw new Error("failed 4478095.1");
37 if (!U.correct)
38 throw new Error("failed 4478095.2");
39 }
40 static class U {
41 static boolean correct = V.assertsEnabled();
42 }
43 static class V extends U {
44 static boolean assertsEnabled() {
45 boolean enabled = false;
46 assert enabled=true;
47 return enabled;
48 }
49 }
50 }