author | dholmes |
Wed, 22 May 2013 20:21:13 -0400 | |
changeset 17709 | fc6f678fdb83 |
parent 17472 | 4ce9bd9f56ac |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* @test |
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* @bug 8013395 8014814 |
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* @summary Test StringBuffer.toString caching |
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*/ |
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public class ToStringCache { |
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// we can't test that we actually use a cached value (the benchmarks |
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// verify that) but we have to test that the cache is cleared when |
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// expected |
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public static void main(String[] args) throws Exception { |
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String original = "The original String"; |
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StringBuffer sb = new StringBuffer(original); |
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String a = sb.toString(); |
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checkEqual(a, original); |
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String b = sb.toString(); |
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checkEqual(a, b); |
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// mutating methods |
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sb.setLength(12); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.setCharAt(0, 'X'); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(new Character('X')); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append("More text"); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(sb); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(new StringBuilder("Build")); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(new StringBuilder("Build2"), 0, 1); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(new char[] { 'a', 'b' }); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(true); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append('c'); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(23); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.appendCodePoint(Character.codePointAt(new char[] { 'X'}, 0)); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(1L); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(1.0f); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.append(1.0d); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.delete(0, 5); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.deleteCharAt(0); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.replace(0,2, "123"); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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a = b; |
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sb.insert(0, new char[] { 'a', 'b', 'c'}, 0, 3); |
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b = sb.toString(); |
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checkUnequal(a, b); |
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141 |
a = b; |
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changeset
|
142 |
|
4ce9bd9f56ac
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dholmes
parents:
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changeset
|
143 |
sb.insert(0, new Object()); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
144 |
b = sb.toString(); |
4ce9bd9f56ac
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dholmes
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changeset
|
145 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
146 |
a = b; |
4ce9bd9f56ac
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dholmes
parents:
diff
changeset
|
147 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
148 |
sb.insert(0, "abc"); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
149 |
b = sb.toString(); |
4ce9bd9f56ac
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parents:
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changeset
|
150 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
151 |
a = b; |
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parents:
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changeset
|
152 |
|
4ce9bd9f56ac
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parents:
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changeset
|
153 |
sb.insert(0, new char[] { 'a', 'b', 'c' }); |
4ce9bd9f56ac
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changeset
|
154 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
155 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
156 |
a = b; |
4ce9bd9f56ac
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dholmes
parents:
diff
changeset
|
157 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
158 |
sb.insert(0, new StringBuilder("Build")); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
159 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
diff
changeset
|
160 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
161 |
a = b; |
4ce9bd9f56ac
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parents:
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changeset
|
162 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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changeset
|
163 |
sb.insert(0, new StringBuilder("Build"), 0, 1); |
4ce9bd9f56ac
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changeset
|
164 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
165 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
166 |
a = b; |
4ce9bd9f56ac
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parents:
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changeset
|
167 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
168 |
sb.insert(0, false); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
169 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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changeset
|
170 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
diff
changeset
|
171 |
a = b; |
4ce9bd9f56ac
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changeset
|
172 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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|
173 |
sb.insert(0, 'X'); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
diff
changeset
|
174 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
175 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
diff
changeset
|
176 |
a = b; |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
177 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
178 |
sb.insert(0, 1); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
179 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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changeset
|
180 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
181 |
a = b; |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
182 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
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changeset
|
183 |
sb.insert(0, 1L); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
184 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
185 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
186 |
a = b; |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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changeset
|
187 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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|
188 |
sb.insert(0, 1.0f); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
189 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
diff
changeset
|
190 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
191 |
a = b; |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
192 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
193 |
sb.insert(0, 1.0d); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
diff
changeset
|
194 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
diff
changeset
|
195 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
196 |
a = b; |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
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parents:
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changeset
|
197 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
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diff
changeset
|
198 |
sb.reverse(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
199 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
200 |
checkUnequal(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
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changeset
|
201 |
|
17709
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
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|
202 |
// Extra checks that append(null) works correctly |
fc6f678fdb83
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|
203 |
|
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
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|
204 |
sb.append((String)null); |
fc6f678fdb83
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parents:
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diff
changeset
|
205 |
b = sb.toString(); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
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changeset
|
206 |
checkUnequal(a, b); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
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diff
changeset
|
207 |
a = b; |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
208 |
|
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
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parents:
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diff
changeset
|
209 |
sb.append((StringBuffer)null); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
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|
210 |
b = sb.toString(); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
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changeset
|
211 |
checkUnequal(a, b); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
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diff
changeset
|
212 |
a = b; |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
213 |
|
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
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diff
changeset
|
214 |
sb.append((StringBuilder)null); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
215 |
b = sb.toString(); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
216 |
checkUnequal(a, b); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
217 |
a = b; |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
218 |
|
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
219 |
sb.append((CharSequence)null); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
220 |
b = sb.toString(); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
221 |
checkUnequal(a, b); |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
222 |
a = b; |
fc6f678fdb83
8014814: (str) StringBuffer "null" is not appended
dholmes
parents:
17472
diff
changeset
|
223 |
|
17472
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
224 |
// non-mutating methods |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
225 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
226 |
// Reset to known value |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
227 |
sb = new StringBuffer(original); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
228 |
a = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
229 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
230 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
231 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
232 |
int l = sb.length(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
233 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
234 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
235 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
236 |
int cap = sb.capacity(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
237 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
238 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
239 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
240 |
sb.ensureCapacity(100); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
241 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
242 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
243 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
244 |
sb.trimToSize(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
245 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
246 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
247 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
248 |
char c = sb.charAt(1); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
249 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
250 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
251 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
252 |
int cp = sb.codePointAt(1); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
253 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
254 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
255 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
256 |
cp = sb.codePointBefore(2); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
257 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
258 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
259 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
260 |
int count = sb.codePointCount(0,1); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
261 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
262 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
263 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
264 |
count = sb.offsetByCodePoints(0, 1); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
265 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
266 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
267 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
268 |
sb.getChars(0, 1, new char[2], 0); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
269 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
270 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
271 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
272 |
String sub = sb.substring(0); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
273 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
274 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
275 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
276 |
CharSequence cs = sb.subSequence(0,1); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
277 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
278 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
279 |
|
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
280 |
sub = sb.substring(0, 3); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
281 |
b = sb.toString(); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
282 |
checkEqual(a, b); |
4ce9bd9f56ac
8013395: StringBuffer.toString performance regression impacting embedded benchmarks
dholmes
parents:
diff
changeset
|
283 |
|
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int index = sb.indexOf("rig"); |
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b = sb.toString(); |
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checkEqual(a, b); |
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|
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index = sb.indexOf("rig", 2); |
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b = sb.toString(); |
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checkEqual(a, b); |
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|
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index = sb.lastIndexOf("rig"); |
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b = sb.toString(); |
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checkEqual(a, b); |
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|
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index = sb.lastIndexOf("rig", 3); |
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b = sb.toString(); |
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checkEqual(a, b); |
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|
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} |
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|
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private static void checkEqual(String s1, String s2) { |
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if (!s1.equals(s2)) |
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throw new RuntimeException("Unmatched strings: s1 = " |
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+ s1 + " s2 = " + s2); |
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} |
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private static void checkUnequal(String s1, String s2) { |
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if (s1.equals(s2)) |
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throw new RuntimeException("Unexpected matched strings: " + s1); |
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} |
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} |