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Repro steps: - install UML module globally and wait till installation completes - uninstall UML module from the Module Manager - examine ide log file
Created attachment 40172 [details] ide log file
I believe NB persitence module has fixed this issue in 6.0
exceptions do not appear now. several related issues are filed separately.\ verified in netbeans-hudson-trunk-980-full (Build 070620)