Re: [wtp-releng] Orbit bundles: Same name, different sizes..

[David M Williams <david_williams@xxxxxxxxxx>]

The larger ones are from the platform
and are signed. (you can see the "checksums" in the manifest.mf
file). 

> its
going to be difficult to verify our feature if each of the dependent projects
install different jars but with the same name.

If you mean "verify the
right jars are installed", based on file size, then yes, we have to
trust everyone is doing the 
right thing with the bundle
versions and qualifiers, and the same version and qualifier implies the
exact same executable code. 

"Signing" should
not effect executable code, per se, but
can have performance implications.
And while we can improve this
in the future, once we all sign, I think has the potential to 
always be different sizes,
since in theory it could be signed a different number of times. 
There might be some programmatic
way to verify same bits, that takes
signing into account.  

This signed-jar case poses
some extra problems ... if someone is just using zips, then there is 
the potential an unsigned jar
could overlay a signed jar (or vice versa) which some users might not like.


I suspect this won't be the
last time this issue of file size surfaces so glad you've made us aware

of it first.

"raghunathan srinivasan" <raghunathan.srinivasan@xxxxxxxxxx>
Sent by: wtp-releng-bounces@xxxxxxxxxxx

06/22/2007 06:25 PM

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Subject	[wtp-releng] Orbit bundles: Same name, different sizes..

Hi,
 
JSF Web Page Editor Preview
functionality works correctly with Eclipse I20070621-1340 and WTP S-2.0RC4-200706212235
(and prereqs).
 
The following files installed
by Eclipse and WTP have the same file name but have different sizes.  Shouldn’t
we be shipping the same bits? 
 
javax.servlet.jsp_2.0.0.v200706191603.jar
– 62 KB (Eclipse install), 56KB (WTP install)
javax.servlet_2.4.0.v200706111738.jar
– 106 KB (Eclipse install),  99 KB (WTP install)
org.apache.commons.el_1.0.0.v200706111724.jar
– 125 KB (Eclipse install), 118 KB (WTP install)
 
We have verified that our preview
feature works when there are one set of files instead of 2 copies, but
its going to be difficult to verify our feature if each of the dependent
projects install different jars but with the same name.
 
-Raghu_______________________________________________
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