Peculiar fruits in the JDK
Ulf.Zibis at CoSoCo.de
Fri Jun 27 20:18:33 PDT 2008
Very much thanks. :-)
New calculator for playing around with map page sizes (corrected link):
Am 27.06.2008 18:52, Xueming Shen schrieb:
> Ulf, my apology for the belated response, I have been kept buzy in something else
> the last couple days and don't have time to dig into my "old" workspace to pick the
> files. Will do it next week or so...
> But in fact the first piece, or say the most import block, of my idea/plan has been
> already putback intot the JDK7 workspace with my fix for Japanese JIS0213 work.
> The JIS0213 charset is implemented by using the "new idea", instead of embedding
> the c2b/b2c mapping table into huge static String object into the class file, the impl
> generates a binary mapping data file from a text based b2c mapping file during the
> build-time, then initialize the b2c and c2bIndex/Table from this data file during its
> take a look at the newly added sun.nio.cs.CharsetMapping.java and the stuff
> under make/tool/Charsetmap...
> I'm in hurry, send you more later...
> Ulf Zibis wrote:
>> Hi Sherman,
>> I am waiting for an answer from you. I myself only answered to the
>> Don't you read the list regularly?
>> Am 24.06.2008 17:58, Xueming Shen schrieb:
>>> Ulf Zibis wrote:
>>>>> Btw, we are not going to do anything for the sun.io.XYZ classes,
>>>>> except removing them. I had once
>>>>> removed them from the J2SE but had to put them back for some
>>>>> reasons, but we are absolutely not
>>>>> going to do anything for that package. I've already eliminatred
>>>>> any use of that package in J2SE in
>>>> How did you eliminate the dependencies? E.g.:
>>>> I see, my work on sun.io was for the scrapheap. :-(
>>> If you have the source code for 5.x, you would find those X11
>>> converters were sun.io based, I rewrote
>>> all of them in JDK6 and modified all the places in awt/font to use
>>> the java.nio.charset interface..
>>> fortunately I was the original font/motif guy who wrote them in the
>>> first place, so not too difficult:-)
>>> I did the same thing for all sun.io.XYZConverter usages to use the
>>> java.nio.charset interface in J2SE
>>> workspace then actually removed the J2SE in JDK6 before beta, but
>>> had to put them back because
>>> BIG licensee insisted they have their JDBC bridge drivers still
>>> using sun.io and don't want to migrate.
>>> Yes, don't try to improve anything in sun.io package, our currently
>>> policy is to keep it there but don't
>>> do anything. That said, in order to rewrite the sun.nio.cs/ext
>>> package we might have to touch this
>>> package again, one of the ideas is to write a adaptor class to
>>> bridge the sun.io.Converter to sun.nio.cs
>>> implementation, so we can eliminate all those CharToByte/ByteToChar
>>> implementation, I have a
>>> draft implementation in one of my ws, but have not fully tested,
>>> will dig it out later.
>>>> very much thank for appreciating my work,
>>> Really appreciate your work. The charset implementation work
>>> currently is not my priority
>>> simply because I lost my main codereviewer Martin (though he is
>>> still interested in this area
>>> after moving on to Google, I'm not so sure how much he can continue
>>> spend on this), so it
>>> would be easy to work on my other interesting areas. But seems like
>>> we now have a contributor
>>> who is very experienced and interested in charset:-) we should give
>>> it a try. I will send
>>> you some classes I was working on to share my thoughts/ideas later.
>>> But I would "warn" you
>>> that all the changes might not make into JDK7, there are sill some
>>> debates internally that whether
>>> or not we should spend our resource (very limited) on something that
>>> works (don't break it if it
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