1 /* 2 * Copyright (c) 2020, Azul Systems, Inc. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 8239787 26 * @requires os.arch=="aarch64" 27 * @summary String.indexOf(char) for empty string must give -1 28 * @run main/othervm -XX:-CompactStrings StringIndexOfChar 29 */ 30 public class StringIndexOfChar { 31 public static void main(String[] args) throws Exception { 32 String emptyString = ""; 33 for (int i = 0 ; i < 100; i ++) { 34 for(int c=0; c<0xFFFF; c++) { 35 int result = emptyString.indexOf((char)c, -1); 36 if (result != -1) { 37 throw new Exception("new String(\"\").indexOf(char, -1) must be -1, but got " + result); 38 } 39 } 40 } 41 } 42 }