Mercurial > jdk8-mips64-public > langtools / annotate
test/tools/javac/TryWithResources/ResourceShadow.java@683b3e7e05a7 (annotated)
test/tools/javac/TryWithResources/ResourceShadow.java
Mon, 26 Oct 2015 13:23:30 -0700
- author
- asaha
- date
- Mon, 26 Oct 2015 13:23:30 -0700
- changeset 2999
- 683b3e7e05a7
- parent 0
- 959103a6100f
- permissions
- -rw-r--r--
Added tag jdk8u76-b00 for changeset 10ffafaf5340
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test |
| aoqi@0 | 26 | * @bug 8025113 |
| aoqi@0 | 27 | * @author sogoel |
| aoqi@0 | 28 | * @summary Test shadowing of resource variable |
| aoqi@0 | 29 | */ |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | /* |
| aoqi@0 | 32 | * "...a variable declared in a resource specification |
| aoqi@0 | 33 | * may be shadowed (6.3.1) anywhere inside a class declaration nested |
| aoqi@0 | 34 | * within the Block of the try." |
| aoqi@0 | 35 | */ |
| aoqi@0 | 36 | public class ResourceShadow { |
| aoqi@0 | 37 | |
| aoqi@0 | 38 | static final String str = "asdf"; //this is okay |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | /** |
| aoqi@0 | 41 | * Resource variable shadows switch and case variables |
| aoqi@0 | 42 | */ |
| aoqi@0 | 43 | String test1() { |
| aoqi@0 | 44 | String ret = null; |
| aoqi@0 | 45 | switch (str) { |
| aoqi@0 | 46 | case str: //this is okay |
| aoqi@0 | 47 | try (SilentCloseable str = new SilentCloseable()) { |
| aoqi@0 | 48 | SilentCloseable tr = new SilentCloseable(str); |
| aoqi@0 | 49 | ret = str.getClass().getSimpleName(); |
| aoqi@0 | 50 | } |
| aoqi@0 | 51 | break; |
| aoqi@0 | 52 | default: |
| aoqi@0 | 53 | ret = ""; |
| aoqi@0 | 54 | } |
| aoqi@0 | 55 | return ret; |
| aoqi@0 | 56 | } |
| aoqi@0 | 57 | |
| aoqi@0 | 58 | /** |
| aoqi@0 | 59 | * Resource variable may be shadowed (6.3.1) anywhere inside a class |
| aoqi@0 | 60 | * declaration nested within the Block of the try |
| aoqi@0 | 61 | */ |
| aoqi@0 | 62 | String test2() { |
| aoqi@0 | 63 | String ret = null; |
| aoqi@0 | 64 | try (SilentCloseable str = new SilentCloseable()) { |
| aoqi@0 | 65 | class temp { |
| aoqi@0 | 66 | |
| aoqi@0 | 67 | String str = "I am not a SilentCloseable"; |
| aoqi@0 | 68 | |
| aoqi@0 | 69 | public void printSTR() { |
| aoqi@0 | 70 | System.out.println(str); |
| aoqi@0 | 71 | } |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | public String getSTR() { |
| aoqi@0 | 74 | return str; |
| aoqi@0 | 75 | } |
| aoqi@0 | 76 | } |
| aoqi@0 | 77 | temp tmp = new temp(); |
| aoqi@0 | 78 | SilentCloseable tr = new SilentCloseable(tmp.getSTR()); |
| aoqi@0 | 79 | ret = tr.getMsg(); |
| aoqi@0 | 80 | } |
| aoqi@0 | 81 | return ret; |
| aoqi@0 | 82 | } |
| aoqi@0 | 83 | |
| aoqi@0 | 84 | public static void main(String... args) { |
| aoqi@0 | 85 | ResourceShadow t = new ResourceShadow(); |
| aoqi@0 | 86 | if (t.test1().compareTo("SilentCloseable") != 0) { |
| aoqi@0 | 87 | throw new RuntimeException("FAIL-test1"); |
| aoqi@0 | 88 | } |
| aoqi@0 | 89 | if (t.test2().compareTo("I am not a SilentCloseable") != 0) { |
| aoqi@0 | 90 | throw new RuntimeException("FAIL-test2"); |
| aoqi@0 | 91 | } |
| aoqi@0 | 92 | } |
| aoqi@0 | 93 | } |
| aoqi@0 | 94 | |
| aoqi@0 | 95 | class SilentCloseable implements AutoCloseable { |
| aoqi@0 | 96 | |
| aoqi@0 | 97 | SilentCloseable testres = null; |
| aoqi@0 | 98 | String msg = "default"; |
| aoqi@0 | 99 | |
| aoqi@0 | 100 | @Override |
| aoqi@0 | 101 | public void close() { |
| aoqi@0 | 102 | } |
| aoqi@0 | 103 | |
| aoqi@0 | 104 | public SilentCloseable() { |
| aoqi@0 | 105 | } |
| aoqi@0 | 106 | |
| aoqi@0 | 107 | public SilentCloseable(String s) { |
| aoqi@0 | 108 | msg = s; |
| aoqi@0 | 109 | } |
| aoqi@0 | 110 | |
| aoqi@0 | 111 | public SilentCloseable(SilentCloseable tr) { |
| aoqi@0 | 112 | testres = tr; |
| aoqi@0 | 113 | } |
| aoqi@0 | 114 | |
| aoqi@0 | 115 | public String getMsg() { |
| aoqi@0 | 116 | return msg; |
| aoqi@0 | 117 | } |
| aoqi@0 | 118 | } |
| aoqi@0 | 119 |
