1 /* 2 * Copyright (c) 2009, 2018, Oracle and/or its affiliates. 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 /** 25 * @test 26 * @bug 6807702 27 * @summary Basic test for Integer.valueOf 28 * @run main ValueOf 29 * @run main/othervm -esa -XX:+IgnoreUnrecognizedVMOptions -XX:+EliminateAutoBox 30 * -XX:AutoBoxCacheMax=20000 ValueOf 31 */ 32 33 public class ValueOf { 34 35 // test Integer.valueOf over this range (inclusive) 36 private static final int TEST_LOW = -1024; 37 private static final int TEST_HIGH = 24576; 38 main(String[] args)39 public static void main(String[] args) { 40 int i = TEST_LOW; 41 while (i <= TEST_HIGH) { 42 // check that valueOf stores i 43 if (Integer.valueOf(i).intValue() != i) 44 throw new RuntimeException(); 45 46 // check that the same object is returned for integral values 47 // in the range -128 to 127 (inclusive) 48 if (i >= -128 && i <= 127) { 49 if (Integer.valueOf(i) != Integer.valueOf(i)) 50 throw new RuntimeException(); 51 } 52 53 i++; 54 } 55 } 56 } 57