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 }