In such conditions:
1) o.n.m.autoupdate.services has a update
2) some modules from other cluster like o.n.profiler depends on newer version
=> new updater will be installed into profiler3 cluster instead of platform9 cluster. It makes Autoupdate Services be
unavailable after restart. ClassNotFoundException: org.netbeans.updater.XMLUtil will thrown always.
A workaround: never deliver update of Autoupdate Services and updates of dependent modules together.
Created attachment 72522 [details]
fixed in rev/0c4340753abb
@sustaining: please, be aware what situation is not allowed for the patch.
Integrated into 'main-golden', will be available in build *200810240201* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Jiri Rechtacek <email@example.com>
Log: #151108: Cannot update Autoupdate Services in specific cases
The fix has been ported into the release65_fixes repository.
Product Version: NetBeans IDE 6.5 (Build 200811100001)
Java: 1.6.0_10; Java HotSpot(TM) Client VM 11.0-b15
System: Windows XP version 5.1 running on x86; Cp1252; en_US (nb)
Cannot reproduce in the build above containing 6.5 patch1 - changing the status whiteboard to 65fixes1-verified.