1 /* 2 * Copyright (c) 1998, 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 4150442 26 @summary Skip must throw an exception for negative args 27 */ 28 29 30 31 import java.io.*; 32 33 public class SkipNegative { 34 public static void main(String argv[]) throws Exception { 35 File f = new File(System.getProperty("test.src", "."), 36 "SkipInput.txt"); 37 FileReader fr = new FileReader(f); 38 long nchars = -1L; 39 try { 40 long actual = fr.skip(nchars); 41 } catch(IllegalArgumentException e){ 42 // Negative argument caught 43 return; 44 } finally { 45 fr.close(); 46 } 47 throw new Exception("Skip should not accept negative values"); 48 } 49 }