71 lines
2.4 KiB
Java
71 lines
2.4 KiB
Java
/*
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* Copyright 2012 Skip Balk. 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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/*
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* @test
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* @bug 7179138
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* @summary Incorrect result with String concatenation optimization
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*
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* @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation
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* compiler.c2.Test7179138_2
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*
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* @author Skip Balk
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*/
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package compiler.c2;
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public class Test7179138_2 {
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public static void main(String[] args) throws Exception {
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System.out.println("Java Version: " + System.getProperty("java.vm.version"));
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long[] durations = new long[60];
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for (int i = 0; i < 100000; i++) {
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// this empty for-loop is required to reproduce this bug
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for (long duration : durations) {
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// do nothing
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}
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{
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String s = "test";
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int len = s.length();
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s = s + s;
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len = len + len;
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s = s + s;
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len = len + len;
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s = s + s;
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len = len + len;
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if (s.length() != len) {
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System.out.println("Failed at iteration: " + i);
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System.out.println("Length mismatch: " + s.length() + " <> " + len);
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System.out.println("Expected: \"" + "test" + "test" + "test" + "test" + "test" + "test" + "test" + "test" + "\"");
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System.out.println("Actual: \"" + s + "\"");
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System.exit(0);
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}
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}
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}
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}
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}
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