Re: [cross-project-issues-dev] Two "late breaking" changes coming in Orb

[David M Williams <david_williams@xxxxxxxxxx>]

Yes. As usual, that would be 1 week prior
to M7 +0 which by my notes is May 2, so one week prior to that is April
25. Naturally, my hope is people can integrate before then, so that in
case there is any problems we'd know about them early enough to fix before
M7. 

Thanks, 




From:      
 Dennis Hübner <dennis.huebner@xxxxxxxxx>
To:      
 Cross project issues
<cross-project-issues-dev@xxxxxxxxxxx>, 
Cc:      
 Orbit Developer discussion
<orbit-dev@xxxxxxxxxxx>
Date:      
 04/08/2014 07:07 AM
Subject:    
   Re: [cross-project-issues-dev]
Two "late breaking" changes coming        in
Orbit bundles: ICU4J, and org.objectweb.asm
Sent by:    
   cross-project-issues-dev-bounces@xxxxxxxxxxx

---

Hello David,
do you plan to produce a stable build for this significant
changes before M7?

Best regards,
Dennis.

Am 08.04.2014 um 02:39 schrieb David M Williams <david_williams@xxxxxxxxxx>:

I've just promoted an Orbit build, that
has two significant changes, which (I hope) will be in this week's Platform
I-build as well. 

http://download.eclipse.org/tools/orbit/downloads/drops/I20140407192103/

1. ICU4J: Version jump from 50.x.x to 52.x.x 

I suspect 90% of you have been through this before, and already follow
our advice, that since ICU4J has their own system for numbering versions,
that its recommended people specify only a "minimum" requirement
(and, I know many still specify 3.x.x or 4.x.x). We know that team works
hard to maintain API compatibility ... even though you can't tell it from
their version numbering. 

But if any of the other 10% of you still specifying a "maximum"
(which we do recommend in nearly all other cases) you may need to remove
or adjust it. 

And for the one percent of you who want to stubbornly continue to use 50.x.x,
remember that ICU4J is one of the rare cases of an Orbit bundle that has
to be a singleton. So, we need to line up. 

And, I'm sure those of you who make heavy use of it already know, but you
can see their release notes and documentation on their site, such as 
https://ssl.icu-project.org/repos/icu/icu4j/tags/release-52-1/APIChangeReport.html


2. org.objectweb.asm 

This probably effects far fewer people, but is a much larger, and "breaking"
change. Not "API breakage", no change to your code, but to your
MANIFEST.MF file. We recently found out (thanks Mat) that the "third
party" project (objectweb ASM) had (last release, which we skipped)
started to "break up" their one jar into 6 smaller ones and,
even, provide their own OSGi bundles. So the "5.0.1" version
that has been in Orbit for a month or so did not follow their pattern,
and in fact, could conflict with it "in the wild", so we felt
we had to change and follow their pattern -- just to be good citizens,
if nothing else ... but in some cases, will allow tiny fraction of savings
in size. Unfortunately, they choose to leave "org.objectweb.asm"
as one of the smaller bundles (so we could not use that as an "umbrella
bundle", reexporting the smaller pieces) so anyone who "requires"
that specific bundle, as some have for years and years, will likely get
compile errors on the new "5.0.1" due to missing classes, and
you will have to add which ever of additional org.objectweb.asm.xxxxx bundles
you need. See the Orbit download page for complete list of 6, and/or see
Bug
431820 for the discussion
and resolution of the issue. 
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Dennis Hübner

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