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From "Tim Ellison (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-665) [classlib][nio]Charset.encode()/decode() should be more safer for multi thread using
Date Mon, 26 Jun 2006 11:39:31 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-665?page=all ]

Tim Ellison reassigned HARMONY-665:
-----------------------------------

    Assign To: Tim Ellison  (was: George Harley)

> [classlib][nio]Charset.encode()/decode() should be more safer for multi thread using
> ------------------------------------------------------------------------------------
>
>          Key: HARMONY-665
>          URL: http://issues.apache.org/jira/browse/HARMONY-665
>      Project: Harmony
>         Type: Bug

>   Components: Classlib
>     Reporter: Paulex Yang
>     Assignee: Tim Ellison
>  Attachments: Harmony-665.diff
>
> As discussion on the mailing list, current Harmony codes may throw exception for the
scenario below:
>          for (int i = 0; i < THREAD_NUM; i++) {
>               thread[i] = new Thread() {
>                   public void run() {
>                      sink.write(ByteBuffer.wrap("bytes"
>                                         .getBytes(ISO8859_1)));
>                     }
>         }
> String.getBytes() actually invokes Charset.encode(), while spec requires Charset.encode()
to be thread-safe. Current Harmony implementation of Charset.encode() holds lock on this Charset
instance, but doesn't synchronize on the system wide cached CharsetEncoder, so it is not safe
for multi Charset instances in multi threads to encode() concurrently. 

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