Mercurial > hg > truffle
view test/compiler/7179138/Test7179138_2.java @ 20319:29a5c2fd2d2e
8046662: Check JNI ReleaseStringChars / ReleaseStringUTFChars verify_guards test inverted
Summary: negative verify_guards when testing for corruption
Reviewed-by: sla, fparain
author | dsimms |
---|---|
date | Thu, 14 Aug 2014 15:22:13 +0200 |
parents | 751bd303aa45 |
children |
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/* * Copyright 2012 Skip Balk. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 7179138 * @summary Incorrect result with String concatenation optimization * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation Test7179138_2 * * @author Skip Balk */ public class Test7179138_2 { public static void main(String[] args) throws Exception { System.out.println("Java Version: " + System.getProperty("java.vm.version")); long[] durations = new long[60]; for (int i = 0; i < 100000; i++) { // this empty for-loop is required to reproduce this bug for (long duration : durations) { // do nothing } { String s = "test"; int len = s.length(); s = s + s; len = len + len; s = s + s; len = len + len; s = s + s; len = len + len; if (s.length() != len) { System.out.println("Failed at iteration: " + i); System.out.println("Length mismatch: " + s.length() + " <> " + len); System.out.println("Expected: \"" + "test" + "test" + "test" + "test" + "test" + "test" + "test" + "test" + "\""); System.out.println("Actual: \"" + s + "\""); System.exit(0); } } } } }