1 /*
   2  * Copyright (c) 1997, 2010, 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 4018515
  26    @summary Make sure that writeUTF throws a UTFDataFormatException when the
  27             output string is too long
  28  */
  29 
  30 import java.io.*;
  31 
  32 
  33 public class WriteUTF {
  34 
  35     public static void main(String[] args) throws IOException {
  36 
  37         RandomAccessFile f;
  38         File fn = new File("x.WriteUTF");
  39 
  40         String s = "\uffff";
  41         for (int i = 0; i < 16; i++)
  42             s += s;
  43         System.err.println("String length " + s.length());
  44 
  45         f = new RandomAccessFile(fn, "rw");
  46         try {
  47             try {
  48                 f.writeUTF(s);
  49             }
  50             catch (UTFDataFormatException x) {
  51                 return;
  52             }
  53             throw new RuntimeException("UTFDataFormatException not thrown");
  54         }
  55         finally {
  56             f.close();
  57             fn.delete();
  58         }
  59 
  60     }
  61 
  62 }