2006/8/14, Denis Kishenko (JIRA) <[EMAIL PROTECTED]>:
[classlib][io] BufferedWriter.write() exception behavior differ from RI
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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.
I think that this is not a problem since
ArrayIndexOutOfBoundsException is a subclass of
IndexOutOfBoundsException...
SY, Alexey
=========================== 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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--
Alexey A. Petrenko
Intel Middleware Products Division
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