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Date: Thu, 3 Jan 2008 04:49:35 -0800 (PST)
From: "Tim Ellison (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Closed: (HARMONY-665)
 [classlib][nio]Charset.encode()/decode() should be more safer for multi
 thread using
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     [ https://issues.apache.org/jira/browse/HARMONY-665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Ellison closed HARMONY-665.
-------------------------------


> [classlib][nio]Charset.encode()/decode() should be more safer for multi thread using
> ------------------------------------------------------------------------------------
>
>                 Key: HARMONY-665
>                 URL: https://issues.apache.org/jira/browse/HARMONY-665
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Paulex Yang
>            Assignee: Tim Ellison
>         Attachments: Harmony-665-2.diff, 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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