[HARMONY-1175] [classlib][io] BufferedWriter.write() exception behavior differ from RI

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Component/s: Classlib
• Assignee: Paulex Yang
• Reporter: Denis Kishenko
• Created: 14/Aug/06 13:03
• Updated: 30/Oct/06 13:55
• Resolved: 20/Sep/06 07:18

Description

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)