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From "deven you (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-6616) [classlib][nio_char] Incompatible charsets of Charset.availableCharsets() between RI6 and Harmony6
Date Wed, 11 Aug 2010 06:27:16 GMT
[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

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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