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From "Regis Xu (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HARMONY-6616) [classlib][nio_char] Incompatible charsets of Charset.availableCharsets() between RI6 and Harmony6
Date Sun, 19 Sep 2010 09:06:33 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-6616?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Regis Xu resolved HARMONY-6616.

    Fix Version/s: 5.0M16
       Resolution: Fixed

Thanks Deven!

The patch was applied at trunk r998619, please verify.

> [classlib][nio_char] Incompatible charsets of Charset.availableCharsets() between RI6
and Harmony6
> --------------------------------------------------------------------------------------------------
>                 Key: HARMONY-6616
>                 URL: https://issues.apache.org/jira/browse/HARMONY-6616
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>    Affects Versions: 5.0M14
>            Reporter: deven you
>             Fix For: 5.0M16
>         Attachments: HARMONY-6616.diff
>   Original Estimate: 168h
>  Remaining Estimate: 168h
> I have run a test to print all available charsets returned by  Charset.availableCharsets()
both on RI6 and Harmony6, and find  RI and harmony return different names for some charsets,
below is the summary:
> RI6 names   Harmony6 names
> IBM00858     cp858
> IBM850        cp850
> IBM857        cp857
> IBM860        cp860
> IBM861        cp861
> IBM862        cp862
> IBM863        cp863
> IBM864        cp864
> IBM865        cp865
> IBM866        cp866
> IBM868        cp868
> IBM869        cp869
> x-IBM737     x-ibm-737_P100-1997
> x-IBM856     cp856
> x-IBM875     x-ibm-875_P100-1995
> x-IBM922     cp922
> x-IBM1006   x-ibm-1006_P100-1995
> x-IBM1025   x-ibm-1025_P100-1995
> x-IBM1112   x-ibm-1112_P100-1995
> x-IBM1122   x-ibm-1122_P100-1999
> x-IBM1123   x-ibm-1123_P100-1995
> x-IBM1124   x-ibm-1124_P100-1996
> x-IBM1097   x-ibm-1097_P100-1995
> x-IBM1098   x-ibm-1098_P100-1995
> x-MacCyrillic x-mac-cyrillic
> x-MacGreek x-mac-greek
> x-MacTurkish x-mac-turkish
> Java spec for Charset.availableCharsets() says: Constructs a sorted map from canonical
charset names to charset objects. So the difference is due to RI and Harmony6 use different
charset names as the canonical names.
> For example  the pair of IBM00858 and cp858 belongs to the same charset, RI uses IBM00858
as the canonical name but Harmony uses cp858, thus they return different charset names for
the availableCharsets(). Above charsets are provided by harmony built-in charsets. I suppose
RI's behavior should be the right one which implies RI uses the correct canonical charset
names so I have changed this built-in charsets to comply with RI.

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