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 1999 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
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22 */
24 /**
25 * @test
26 * @bug 4240487
27 * @summary Verify that we keep track of init/uninits in Try statement
28 * without finalizer.
29 *
30 * @compile/fail DefAssignAfterTry2.java
31 */
33 class E1 extends Exception {}
34 class E2 extends Exception {}
36 public class DefAssignAfterTry2 {
37 public static void main(String argv[]) {
38 boolean t = true;
39 E1 se1 = new E1();
40 E2 se2 = new E2();
41 int i;
42 try {
43 if (t) {
44 i = 0;
45 throw se1;
46 } else {
47 throw se2;
48 }
49 } catch (E1 e) {
50 } catch (E2 e) {
51 i = 0;
52 }
53 // the following line should result in a compile-time error
54 // variable i may not have been initialized
55 System.out.println(i);
56 System.out.println("Error : there should be compile-time errors");
57 }
58 }