[
https://issues.apache.org/jira/browse/WW-4383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lukasz Lenart updated WW-4383:
------------------------------
Description:
An infinite loop occurs in FastByteArrayOutputStream.java.
The conditions which an infinite loop generates are as follows.
- The character code of input data is UTF-8.
- The length of input data is longer than 16 KB.
- There is a character of a surrogate pair after 16 KB of input data.
- Example of input data:
The input data to reproduce repeats 3 bytes of character 5462 times, and the
character of a surrogate pair appears behind that.
- Cause
Is clean of the out buffer necessary for decodeAndWritw method after the output
in an out buffer?
{code:java}
private static CoderResult decodeAndWrite(Writer writer, ByteBuffer in,
CharBuffer out, CharsetDecoder decoder, boolean endOfInput) throws IOException {
CoderResult result = decoder.decode(in, out, endOfInput);
// To begin of decoded data
out.flip();
// Output
writer.write(out.toString());
return result;
}
{code}
was:
An infinite loop occurs in FastByteArrayOutputStream.java.
The conditions which an infinite loop generates are as follows.
- The character code of input data is UTF-8.
- The length of input data is longer than 16 KB.
- There is a character of a surrogate pair after 16 KB of input data.
- Example of input data:
The input data to reproduce repeats 3 bytes of character 5462 times,
and the character of a surrogate pair appears behind that.
- Cause
Is clean of the out buffer necessary for decodeAndWritw method after the output
in an out buffer?
{code:java}
private static CoderResult decodeAndWrite(Writer writer, ByteBuffer in,
CharBuffer out, CharsetDecoder decoder, boolean endOfInput) throws IOException {
CoderResult result = decoder.decode(in, out, endOfInput);
// To begin of decoded data
out.flip();
// Output
writer.write(out.toString());
return result;
}
{code}
> An infinite loop occurs in FastByteArrayOutputStream.java.
> -----------------------------------------------------------
>
> Key: WW-4383
> URL: https://issues.apache.org/jira/browse/WW-4383
> Project: Struts 2
> Issue Type: Bug
> Components: Core Actions
> Affects Versions: 2.3.16.3
> Reporter: Suzuki Yoshifumi
> Priority: Minor
> Original Estimate: 672h
> Remaining Estimate: 672h
>
> An infinite loop occurs in FastByteArrayOutputStream.java.
> The conditions which an infinite loop generates are as follows.
> - The character code of input data is UTF-8.
> - The length of input data is longer than 16 KB.
> - There is a character of a surrogate pair after 16 KB of input data.
> - Example of input data:
> The input data to reproduce repeats 3 bytes of character 5462 times, and the
> character of a surrogate pair appears behind that.
> - Cause
> Is clean of the out buffer necessary for decodeAndWritw method after the
> output in an out buffer?
> {code:java}
> private static CoderResult decodeAndWrite(Writer writer, ByteBuffer in,
> CharBuffer out, CharsetDecoder decoder, boolean endOfInput) throws
> IOException {
> CoderResult result = decoder.decode(in, out, endOfInput);
> // To begin of decoded data
> out.flip();
> // Output
> writer.write(out.toString());
> return result;
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.2#6252)
