1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/TryWithResources/ResourceShadow.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,119 @@
1.4 +/*
1.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 8025113
1.30 + * @author sogoel
1.31 + * @summary Test shadowing of resource variable
1.32 + */
1.33 +
1.34 +/*
1.35 + * "...a variable declared in a resource specification
1.36 + * may be shadowed (6.3.1) anywhere inside a class declaration nested
1.37 + * within the Block of the try."
1.38 + */
1.39 +public class ResourceShadow {
1.40 +
1.41 + static final String str = "asdf"; //this is okay
1.42 +
1.43 + /**
1.44 + * Resource variable shadows switch and case variables
1.45 + */
1.46 + String test1() {
1.47 + String ret = null;
1.48 + switch (str) {
1.49 + case str: //this is okay
1.50 + try (SilentCloseable str = new SilentCloseable()) {
1.51 + SilentCloseable tr = new SilentCloseable(str);
1.52 + ret = str.getClass().getSimpleName();
1.53 + }
1.54 + break;
1.55 + default:
1.56 + ret = "";
1.57 + }
1.58 + return ret;
1.59 + }
1.60 +
1.61 + /**
1.62 + * Resource variable may be shadowed (6.3.1) anywhere inside a class
1.63 + * declaration nested within the Block of the try
1.64 + */
1.65 + String test2() {
1.66 + String ret = null;
1.67 + try (SilentCloseable str = new SilentCloseable()) {
1.68 + class temp {
1.69 +
1.70 + String str = "I am not a SilentCloseable";
1.71 +
1.72 + public void printSTR() {
1.73 + System.out.println(str);
1.74 + }
1.75 +
1.76 + public String getSTR() {
1.77 + return str;
1.78 + }
1.79 + }
1.80 + temp tmp = new temp();
1.81 + SilentCloseable tr = new SilentCloseable(tmp.getSTR());
1.82 + ret = tr.getMsg();
1.83 + }
1.84 + return ret;
1.85 + }
1.86 +
1.87 + public static void main(String... args) {
1.88 + ResourceShadow t = new ResourceShadow();
1.89 + if (t.test1().compareTo("SilentCloseable") != 0) {
1.90 + throw new RuntimeException("FAIL-test1");
1.91 + }
1.92 + if (t.test2().compareTo("I am not a SilentCloseable") != 0) {
1.93 + throw new RuntimeException("FAIL-test2");
1.94 + }
1.95 + }
1.96 +}
1.97 +
1.98 +class SilentCloseable implements AutoCloseable {
1.99 +
1.100 + SilentCloseable testres = null;
1.101 + String msg = "default";
1.102 +
1.103 + @Override
1.104 + public void close() {
1.105 + }
1.106 +
1.107 + public SilentCloseable() {
1.108 + }
1.109 +
1.110 + public SilentCloseable(String s) {
1.111 + msg = s;
1.112 + }
1.113 +
1.114 + public SilentCloseable(SilentCloseable tr) {
1.115 + testres = tr;
1.116 + }
1.117 +
1.118 + public String getMsg() {
1.119 + return msg;
1.120 + }
1.121 +}
1.122 +
