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Date: Wed, 25 Feb 2009 14:13:01 +0800
Message-ID: <c8963150902242213m7a1fec0apb11822b4a50888af@mail.gmail.com>
Subject: Re: about upgrade icu4j 3.8 to icu4j 4.0
From: Jim Yu <junjie0122@gmail.com>
To: dev@harmony.apache.org
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Thanks Deven. Sounds reasonable for the upgrade. If there are any failures
after upgrading, I'm happy to join the bug fixing work.

2009/2/25 Deven You <devyoudw@gmail.com>

> From our tests, upgrade to icu4j 4.0 can speed up tomcat startup time.
>
> 2009/2/24 Mark Hindess <mark.hindess@googlemail.com>
>
> >
> > In message <efe92bae0902200123p77037a46s965966c262c50ce8@mail.gmail.com
> >,
> > Deven You writes:
> > >
> > > Hi,
> > > I have tried to upgrade icu4j3.8 to icu4j4.0 for  classlib trunk on my
> > > machine, below is the instructions for this upgrade:
> > > 1. download  icu4j-4_0.jar and icu4j-charsets-4_0.jar from ICU official
> > > website http://icu-project.org/download/4.0.html
> > > 2. create icu4j_4.0 folder in trunk/depends/jars, copy icu4j-4_0.jar
> and
> > > icu4j-charsets-4_0.jar into icu4j_4.0 folder
> > > 3. create icu4j_4.0 folder in trunk/depends/manifests, copy META-INF
> > foledr
> > > from icu4j_3.8 and use version 4.0 replace 3.8 in the MANIFEST.MF
>  file.
> > > 4. apply configuration patch[1] for icu4.0 to change some configuration
> > > settings.
> > > 5.  apply nio Charset patch[2] to avoid circular dependency error, if
> no
> > > this patch,  nio_char unit test will report many circular dependency
> > > error[3]
> > >
> > > I think maybe now we can upgrade icu4j 3.8 to icu4j 4.0.
> > > any issues welcom to discuss!
> > >
> > > [1]
> > >
> >
> https://issues.apache.org/jira/secure/attachment/12400589/config_icu40.diff
> > > [2]
> > https://issues.apache.org/jira/secure/attachment/12400590/Charset.diff
> > > [3]
> > >
> >
> https://issues.apache.org/jira/secure/attachment/12400591/nio_char_errors.txt
> >
> > Seems like a good idea.  I'll try to find a moment to test this.
> >
> > What are the benefits we get from this upgrade?  Performance?  Footprint?
> >
> > In case it helps anyone else, the JIRA with these attachments is:
> >
> >  https://issues.apache.org/jira/browse/HARMONY-6096
> >
> > (I don't think there is an easy way to get from attachment links back to
> > the
> > jira link?)
> >
> > Regards,
> > -Mark.
> >
> >
> >
>


-- 
Best Regards,
Jim, Jun Jie Yu

China Software Development Lab, IBM

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