Add x-IBM-1129 charset

[Xueming Shen]

The change looks fine.

Btw, do you guy have better implementation for these two charsets? These two
were left untouched when I did the reimplementation back to 6/7. Did not
have time to figure out its mapping table (especially the compatibility 
concern
when dealing with the mapping hard-coded inside the source and those maps
from cdc repository). This was the main reason I did not move the 
SimpleEUCEncoder
into the sun.nio.cs.DoubleByte.java.

-Sherman


On 5/19/18, 12:56 AM, Nasser Ebrahim wrote:
> Hello,
>
> With the following three bugs, all the default locale charsets except two
> (Vi_VN.IBM-1129&  ja_JP.IBM-eucJP) are fixed for AIX platform.
>
> - JDK-8201540: [AIX] Extend the set of supported charsets in java.base
> - JDK-8202329: Codepage mappings for IBM-943 and Big5 (aix)
> -
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2018-May/053050.html
> : [AIX] Add charset IBM-964 (default charset for zh_TW.IBM-eucTW) to stdcs
> [bug not yet opened].
>
> For those fixed charsets, the charsets were existing in the extended
> charsets (jdk.charsets) and they were not working with default locale
> charset as it did not exist in the standard charset (java.base). The
> charsets correspond to the two pending locale (Vi_VN.IBM-1129&
> ja_JP.IBM-eucJP) does not exist in the jdk. They need to be added to the
> extended charsets before adding to stdcs on AIX platform.
>
> Here, am including the patch to fix  the charset IBM-1129 for the locale
> Vi_VN.IBM-1129. We are working on the other missing charset (for
> ja_JP.IBM-eucJP) which will be contributed in some time.
>
> The webrev of the fix is available at
> http://cr.openjdk.java.net/~aleonard/IBM1129/webrev.00/
>
> Kindly request you to open a bug and review the fix. Please let me know if
> you have any questions.
>
> Thank you,
> Nasser Ebrahim
>