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From "Denis Kishenko (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1175) [classlib][io] BufferedWriter.write() exception behavior differ from RI
Date Mon, 14 Aug 2006 13:04:13 GMT
[classlib][io] BufferedWriter.write() exception behavior differ from RI
-----------------------------------------------------------------------

                 Key: HARMONY-1175
                 URL: http://issues.apache.org/jira/browse/HARMONY-1175
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
            Reporter: Denis Kishenko


1. Harmony implementation of BufferedWriter.write(String, int, int) throws an exception if
len is negative while spec says (and RI follows it)
public void write(String s, int off, int len) throws IOExceptionWrite a portion of a String.

If the value of the len parameter is negative then no characters are written. This is contrary
to the specification of this method in the superclass, which requires that an IndexOutOfBoundsException
be thrown. 

2. Harmony implementation of BufferedWriter.write(char[], int, int)  throws ArrayIndexOutOfBoundsException
while RI throws IndexOutOfBoundsException.

=========================== Test ===============================
import java.io.*;
public class bug9588 {

    static void test(String name, Object buf, int offset, int count) {
        try {
            System.err.println(name);
            ByteArrayOutputStream baos = new ByteArrayOutputStream(200);
            OutputStreamWriter osw = new OutputStreamWriter(baos);
            BufferedWriter bw = new BufferedWriter((Writer)osw);
            if (buf instanceof String) {
                bw.write((String)buf, offset, count);
            } else {
                bw.write((char[])buf, offset, count);
            }
            bw.flush();
            System.err.println("Number of written chars: " +(baos.toByteArray()).length);
        } catch (Exception e) {
            e.printStackTrace();
        }  
    }

    public static void main (String [] args) throws Exception  {
        String str = "abcde";
        char[] ch = new char[] {'a', 'b', 'c', 'd', 'e'}; 
        test("1", str, 1, -1);
        test("2", str, -1, 1);
        test("3", str, -1, -1);
        test("4", str, 7, 1);
        test("5", str, 3, 4);        
        test("6", ch, 1, -1);
        test("7", ch, -1, 1);
        test("8", ch, -1, -1);
        test("9", ch, 7, 1);
        test("10", ch, 3, 4);        
    }
}

=================== Output ==========================

RI

1
Number of written chars: 0
2
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
    at java.lang.String.getChars(II[CI)V(Unknown Source)
    at java.io.BufferedWriter.write(BufferedWriter.java:208)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:27)
3
Number of written chars: 0
4
java.lang.StringIndexOutOfBoundsException: String index out of range: 8
    at java.lang.String.getChars(II[CI)V(Unknown Source)
    at java.io.BufferedWriter.write(BufferedWriter.java:208)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:29)
5
java.lang.StringIndexOutOfBoundsException: String index out of range: 7
    at java.lang.String.getChars(II[CI)V(Unknown Source)
    at java.io.BufferedWriter.write(BufferedWriter.java:208)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:30)
6
java.lang.IndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:160)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:31)
7
java.lang.IndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:160)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:32)
8
java.lang.IndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:160)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:33)
9
java.lang.IndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:160)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:34)
10
java.lang.IndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:160)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:35)

Harmony

1
java.lang.StringIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:291)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:26)
2
java.lang.StringIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:291)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:27)
3
java.lang.StringIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:291)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:28)
4
java.lang.StringIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:291)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:29)
5
java.lang.StringIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:291)
    at bug9588.test(bug9588.java:12)
    at bug9588.main(bug9588.java:30)
6
java.lang.ArrayIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:198)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:31)
7
java.lang.ArrayIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:198)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:32)
8
java.lang.ArrayIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:198)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:33)
9
java.lang.ArrayIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:198)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:34)
10
java.lang.ArrayIndexOutOfBoundsException
    at java.io.BufferedWriter.write(BufferedWriter.java:198)
    at bug9588.test(bug9588.java:14)
    at bug9588.main(bug9588.java:35)


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