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[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: and

Projects should please take a look and send me any feedback or questions you may have.



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