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This issue was reported manually by pavaneshwar. It already has 3 duplicates Build: NetBeans IDE 6.9.1 (Build 201007282301) VM: Java HotSpot(TM) 64-Bit Server VM, 17.0-b17, Java(TM) SE Runtime Environment, 1.6.0_21-b07 OS: Windows 7 Stacktrace: java.lang.NoClassDefFoundError: org/netbeans/modules/bugtracking/ui/issue/IssueTopComponent at org.netbeans.modules.bugtracking.BugtrackingManager$ActivatedTCListener.propertyChange(BugtrackingManager.java:246) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276) at org.netbeans.core.windows.RegistryImpl.doFirePropertyChange(RegistryImpl.java:321) at org.netbeans.core.windows.RegistryImpl.access$100(RegistryImpl.java:69) at org.netbeans.core.windows.RegistryImpl$1.run(RegistryImpl.java:173)
Created attachment 129364 [details] stacktrace
Four reports from 6.9.x - I don't think there is anything wrong in the module system, rather some misconfiguration in the bugzilla module(s).
(In reply to comment #2) > Four reports from 6.9.x - I don't think there is anything wrong in the module > system, rather some misconfiguration in the bugzilla module(s). the build is 2.5 years old, and there are no similar reports like that. whatever the reason is, something went totally wrong. Also the missing class is and always was in the same module like the class from which the exception was thrown. closing for now, but feel free to reopen in case the problem reappears and please also describe then what exactly you were doing with the bugtracking support when it happened. using a more current is also recommended.