Since Pack200 is in J2SE 5.0, does that you
won’t be able to download Callisto with Java 1.4?
From:
cross-project-issues-dev-bounces@xxxxxxxxxxx
[mailto:cross-project-issues-dev-bounces@xxxxxxxxxxx] On Behalf Of Andrew Niefer
Sent: Monday, April 24, 2006 5:27
PM
To:
cross-project-issues-dev@xxxxxxxxxxx
Subject: [cross-project-issues-dev]
Update Site improvements for Callisto
Starting in RC2 (or nightly build N20060423-0010)
org.eclipse.update.core will have support for optimizing update sites. This
support takes the form of digests and Pack200.
Pack200
is a jar compression utility in J2SE 5.0, using it can reduce the size of a jar
by about 60% depending on its contents. However, Pack200 makes
non-semantic changes to the class files. To ensure that the bits
downloaded from a packed update site are the same bits the you get from a
normal zip distribution, project should condition their jars as part of their
build process.
I
have put together 2 wiki pages to cover this issue:
http://wiki.eclipse.org/index.php/Update_Site_Optimization and
http://wiki.eclipse.org/index.php/Pack200.
Projects
should please take a look and send me any feedback or questions you may have.
-Andrew