1 /* 2 * Copyright (c) 2016, 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 /* @test 25 * @bug 8163518 26 * @summary Integer overflow when skipping a lot 27 */ 28 29 import java.io.CharArrayReader; 30 31 public class OverflowInSkip { 32 public static void main(String[] args) throws Exception { 33 char[] a = "_123456789_123456789_123456789_123456789" 34 .toCharArray(); // a.length > 33 35 try (CharArrayReader car = new CharArrayReader(a)) { 36 long small = 33; 37 long big = Long.MAX_VALUE; 38 39 long smallSkip = car.skip(small); 40 if (smallSkip != small) 41 throw new Exception("Expected to skip " + small 42 + " chars, but skipped " + smallSkip); 43 44 long expSkip = a.length - small; 45 long bigSkip = car.skip(big); 46 if (bigSkip != expSkip) 47 throw new Exception("Expected to skip " + expSkip 48 + " chars, but skipped " + bigSkip); 49 } 50 } 51 }