Mercurial > jdk8-mips64-public > langtools / annotate
test/tools/javac/CaptureInSubtype.java@7909abb85562 (annotated)
test/tools/javac/CaptureInSubtype.java
Wed, 14 Nov 2018 10:18:25 -0800
- author
- diazhou
- date
- Wed, 14 Nov 2018 10:18:25 -0800
- changeset 3762
- 7909abb85562
- parent 554
- 9d9f26857129
- child 2525
- 2eb010b6cb22
- permissions
- -rw-r--r--
Added tag jdk8u201-b04 for changeset a7f48b9dfb82
| duke@1 | 1 | /* |
| ohair@554 | 2 | * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
| duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@1 | 4 | * |
| duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@1 | 7 | * published by the Free Software Foundation. |
| duke@1 | 8 | * |
| duke@1 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@1 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@1 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@1 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@1 | 13 | * accompanied this code). |
| duke@1 | 14 | * |
| duke@1 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@1 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@1 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@1 | 18 | * |
| ohair@554 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| ohair@554 | 20 | * or visit www.oracle.com if you need additional information or have any |
| ohair@554 | 21 | * questions. |
| duke@1 | 22 | */ |
| duke@1 | 23 | |
| duke@1 | 24 | /* |
| duke@1 | 25 | * @test |
| duke@1 | 26 | * @bug 5044157 |
| duke@1 | 27 | * @summary type system loophole in wildcard substitution |
| duke@1 | 28 | * @author Gilad Bracha |
| duke@1 | 29 | * |
| duke@1 | 30 | * @compile/fail CaptureInSubtype.java |
| duke@1 | 31 | */ |
| duke@1 | 32 | |
| duke@1 | 33 | import java.util.List; |
| duke@1 | 34 | import java.util.ArrayList; |
| duke@1 | 35 | |
| duke@1 | 36 | public class CaptureInSubtype { |
| duke@1 | 37 | |
| duke@1 | 38 | static class SuperOfFlaw<S>{ |
| duke@1 | 39 | S s; |
| duke@1 | 40 | S get() { return s;} |
| duke@1 | 41 | void put(S a) { s = a;} |
| duke@1 | 42 | |
| duke@1 | 43 | SuperOfFlaw(S a) { s = a;} |
| duke@1 | 44 | } |
| duke@1 | 45 | |
| duke@1 | 46 | static class Flaw<T> extends SuperOfFlaw<List<T>> { |
| duke@1 | 47 | List<T> fetch(){return s;} |
| duke@1 | 48 | |
| duke@1 | 49 | Flaw(T t){super(new ArrayList<T>()); s.add(t);} |
| duke@1 | 50 | } |
| duke@1 | 51 | |
| duke@1 | 52 | static class SuperOfShowFlaw { |
| duke@1 | 53 | |
| duke@1 | 54 | SuperOfFlaw<List<?>> m(){return null;} |
| duke@1 | 55 | } |
| duke@1 | 56 | |
| duke@1 | 57 | |
| duke@1 | 58 | public static class ShowFlaw extends SuperOfShowFlaw { |
| duke@1 | 59 | static Flaw<Number> fn = new Flaw<Number>(new Integer(3)); |
| duke@1 | 60 | |
| duke@1 | 61 | Flaw<?> m(){return fn;} |
| duke@1 | 62 | } |
| duke@1 | 63 | |
| duke@1 | 64 | public static void main(String[] args) { |
| duke@1 | 65 | SuperOfShowFlaw sosf = new ShowFlaw(); |
| duke@1 | 66 | SuperOfFlaw<List<?>> sof = sosf.m(); |
| duke@1 | 67 | List<String> ls = new ArrayList<String>(); |
| duke@1 | 68 | ls.add("Smalltalk rules!"); |
| duke@1 | 69 | sof.put(ls); |
| duke@1 | 70 | Number n = ShowFlaw.fn.get().get(0); |
| duke@1 | 71 | } |
| duke@1 | 72 | |
| duke@1 | 73 | } |
