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From Deven You <devyo...@gmail.com>
Subject Re: about upgrade icu4j 3.8 to icu4j 4.0
Date Wed, 25 Feb 2009 05:38:28 GMT
>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.
>
>
>

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