1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/TryWithResources/ResInNestedExpr.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,195 @@
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 Resource creation in nested expressions
1.32 + */
1.33 +
1.34 +/**
1.35 + * This test checks for resource creation in nested expressions.
1.36 + * test1() - Create 3 resource in nested new expressions, style 1
1.37 + * test2() - Create 3 resource in nested new expressions, style 2
1.38 + * test3() - Create 4 resources with resources as parameters: new expression; typeid & new expression
1.39 + */
1.40 +
1.41 +public class ResInNestedExpr {
1.42 +
1.43 + static final int expected = 5;
1.44 + static int closed = 0;
1.45 +
1.46 + static void closing(String clazz) {
1.47 + closed++;
1.48 + }
1.49 +
1.50 + static void checkClosedCount() {
1.51 + if (expected != closed) {
1.52 + throw new RuntimeException("Did not find enough closed resources."
1.53 + + "Expected " + expected + ", but found " + closed);
1.54 + }
1.55 + }
1.56 + /**
1.57 + * The "expected output" is each class name gotten with getSimpleName() to unclutter things.
1.58 + * Each test method returns a classname of the resource and that is compared with
1.59 + * values in this array.
1.60 + */
1.61 + static String[] expectedOutput = {
1.62 + "aResource::bResource::cResource", //test1
1.63 + "aResource::bResource::cResource&aResource::cResource", //test3
1.64 + "aResource::bResource::cResource&aResource::cResource"}; //test2
1.65 +
1.66 + static void compare(String s1, String s2) {
1.67 + if (s1.compareTo(s2) != 0) {
1.68 + throw new RuntimeException(s1 + "!=" + s2);
1.69 + }
1.70 + }
1.71 +
1.72 + String test1() {
1.73 + String ret = null;
1.74 + try (bResource br = new bResource(new cResource());
1.75 + aResource ar = new aResource(br)) {
1.76 + ret = ar.getClass().getSimpleName() + "::" +
1.77 + ar.getB().getClass().getSimpleName() + "::" +
1.78 + ar.getB().getC().getClass().getSimpleName();
1.79 + }
1.80 + return ret;
1.81 + }
1.82 +
1.83 + String test2() {
1.84 + String ret = null;
1.85 + try (aResource ar = new aResource(new bResource(new cResource()), new cResource())) {
1.86 + String abc = ar.getClass().getSimpleName() + "::" +
1.87 + ar.getB().getClass().getSimpleName() + "::" +
1.88 + ar.getB().getC().getClass().getSimpleName();
1.89 + String ac = ar.getClass().getSimpleName() + "::" +
1.90 + ar.getC().getClass().getSimpleName();
1.91 + ret = abc + "&" + ac;
1.92 + }
1.93 + return ret;
1.94 + }
1.95 +
1.96 + String test3() {
1.97 + String ret = null;
1.98 + try (bResource br = new bResource(new cResource());
1.99 + aResource ar = new aResource(br, new cResource())) {
1.100 + String abc = ar.getClass().getSimpleName() + "::" +
1.101 + ar.getB().getClass().getSimpleName() + "::" +
1.102 + ar.getB().getC().getClass().getSimpleName();
1.103 + String ac = ar.getClass().getSimpleName() + "::" +
1.104 + ar.getC().getClass().getSimpleName();
1.105 + ret = abc + "&" + ac;
1.106 + }
1.107 + return ret;
1.108 + }
1.109 +
1.110 + public static void main(String... args) {
1.111 + ResInNestedExpr t = new ResInNestedExpr();
1.112 + int eo = 0;
1.113 + compare(expectedOutput[eo++], t.test1());
1.114 + compare(expectedOutput[eo++], t.test3());
1.115 + compare(expectedOutput[eo++], t.test2());
1.116 + ResInNestedExpr.checkClosedCount();
1.117 + }
1.118 +
1.119 + /**
1.120 + * A resource to implement AutoCloseable
1.121 + * Contains two other resources as data items.
1.122 + */
1.123 + static class aResource implements AutoCloseable {
1.124 +
1.125 + bResource bR;
1.126 + cResource cR;
1.127 +
1.128 + public aResource() {
1.129 + bR = null;
1.130 + cR = null;
1.131 + }
1.132 +
1.133 + public aResource(bResource br) {
1.134 + bR = br;
1.135 + }
1.136 +
1.137 + public aResource(cResource cr) {
1.138 + cR = cr;
1.139 + }
1.140 +
1.141 + public aResource(bResource br, cResource cr) {
1.142 + bR = br;
1.143 + cR = cr;
1.144 + }
1.145 +
1.146 + public bResource getB() {
1.147 + return bR;
1.148 + }
1.149 +
1.150 + public cResource getC() {
1.151 + return cR;
1.152 + }
1.153 +
1.154 + @Override
1.155 + public void close() {
1.156 + ResInNestedExpr.closing(this.getClass().getName());
1.157 + }
1.158 + }
1.159 +
1.160 + /**
1.161 + * A resource to implement AutoCloseable
1.162 + * Contains one other resources as a data item.
1.163 + */
1.164 + static class bResource implements AutoCloseable {
1.165 +
1.166 + cResource cR;
1.167 +
1.168 + public bResource() {
1.169 + cR = null;
1.170 + }
1.171 +
1.172 + public bResource(cResource cr) {
1.173 + cR = cr;
1.174 + }
1.175 +
1.176 + public cResource getC() {
1.177 + return cR;
1.178 + }
1.179 +
1.180 + @Override
1.181 + public void close() {
1.182 + ResInNestedExpr.closing(this.getClass().getName());
1.183 + }
1.184 + }
1.185 +
1.186 + /** A resource to implement AutoCloseable */
1.187 + static class cResource implements AutoCloseable {
1.188 +
1.189 + public cResource() {
1.190 + }
1.191 +
1.192 + @Override
1.193 + public void close() {
1.194 + ResInNestedExpr.closing(this.getClass().getName());
1.195 + }
1.196 + }
1.197 +}
1.198 +
