/* * Copyright (c) 2009, 2018, Oracle and/or its affiliates. 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 6807702 * @summary Basic test for Integer.valueOf * @run main ValueOf * @run main/othervm -esa -XX:+EliminateAutoBox -XX:AutoBoxCacheMax=20000 ValueOf */ public class ValueOf { // test Integer.valueOf over this range (inclusive) private static final int TEST_LOW = -1024; private static final int TEST_HIGH = 24576; public static void main(String[] args) { int i = TEST_LOW; while (i <= TEST_HIGH) { // check that valueOf stores i if (Integer.valueOf(i).intValue() != i) throw new RuntimeException(); // check that the same object is returned for integral values // in the range -128 to 127 (inclusive) if (i >= -128 && i <= 127) { if (Integer.valueOf(i) != Integer.valueOf(i)) throw new RuntimeException(); } i++; } } }