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13  * accompanied this code).
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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 
main(String[] args)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 }
63