--- old/test/compiler/c2/7179138/Test7179138_1.java 2016-07-06 19:20:01.803392435 +0300 +++ /dev/null 2016-06-14 14:43:27.230512026 +0300 @@ -1,66 +0,0 @@ -/* - * 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_1 - * - * @author Skip Balk - */ - -public class Test7179138_1 { - 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 = new StringBuilder(String.valueOf(s)).append(s).toString(); - len = len + len; - - s = new StringBuilder(String.valueOf(s)).append(s).toString(); - len = len + len; - - s = new StringBuilder(String.valueOf(s)).append(s).toString(); - 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(97); - } - } - } - } -} - --- /dev/null 2016-06-14 14:43:27.230512026 +0300 +++ new/test/compiler/c2/Test7179138_1.java 2016-07-06 19:20:01.655392431 +0300 @@ -0,0 +1,70 @@ +/* + * 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 + * compiler.c2.Test7179138_1 + * + * @author Skip Balk + */ + +package compiler.c2; + +public class Test7179138_1 { + 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 = new StringBuilder(String.valueOf(s)).append(s).toString(); + len = len + len; + + s = new StringBuilder(String.valueOf(s)).append(s).toString(); + len = len + len; + + s = new StringBuilder(String.valueOf(s)).append(s).toString(); + 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(97); + } + } + } + } +} +