[jira] Assigned: (HARMONY-6590) [classlib][luni]A issue about CharsetEncoder.flush() in the OutputStreamWrtier.close()

["Tim Ellison (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-6590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Ellison reassigned HARMONY-6590:
------------------------------------

    Assignee: Tim Ellison

> [classlib][luni]A issue about CharsetEncoder.flush() in the OutputStreamWrtier.close()
> --------------------------------------------------------------------------------------
>
>                 Key: HARMONY-6590
>                 URL: https://issues.apache.org/jira/browse/HARMONY-6590
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>    Affects Versions: 5.0M14
>            Reporter: deven you
>            Assignee: Tim Ellison
>         Attachments: HARMONY-6590.diff
>
>   Original Estimate: 96h
>  Remaining Estimate: 96h
>
> Today I read through the OutputStreamWrtier.close() code below:
>     public void close() throws IOException {
>         synchronized (lock) {
>             if (encoder != null) {
>                 encoder.flush(bytes);
>                 flush();
>                 out.flush();
>                 out.close();
>                 encoder = null;
>                 bytes = null;
>             }
>         }
>     } 
> I remember the java spec says for the CharsetEncoder.flush(): IllegalStateException - If the previous step of the current encoding operation was an invocation neither of the reset method nor of the three-argument encode method with a value of true for the endOfInput parameter.
> Obviously OutputStreamWrtier.close() does not check this prerequisite before invoking the encoder.flush(bytes). So I write a test case[1] to check this issue but it passed, I think it is because our CharsetEncoder.flush() does not follow the spec.
> Though I think our OutputStreamWrtier.close() should modify to follow the spec. I have put the patch[1] on this jira.
> And I will also look into the CharsetEncoder.flush() to investigate this problem.
> [1] see the attached patch

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