java.util.ConcurrentModificationException at org.openide.util.WeakSet$SharedKeyWeakHashMap$HashIterator.nextEntry(WeakSet.java:1010) at org.openide.util.WeakSet$SharedKeyWeakHashMap$KeyIterator.next(WeakSet.java:1052) at org.netbeans.modules.bugzilla.autoupdate.BugzillaAutoupdate$AutoupdateCallback.getServerVersion(BugzillaAutoupdate.java:129) at org.netbeans.modules.bugtracking.util.AutoupdateSupport.checkAndNotify(AutoupdateSupport.java:120) at org.netbeans.modules.bugzilla.autoupdate.BugzillaAutoupdate.checkAndNotify(BugzillaAutoupdate.java:94) at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.checkAutoupdate(BugzillaExecutor.java:568) at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.execute(BugzillaExecutor.java:116) at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.execute(BugzillaExecutor.java:104) at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.execute(BugzillaExecutor.java:100) at org.netbeans.modules.bugzilla.query.BugzillaQuery$1.run(BugzillaQuery.java:221) at org.netbeans.modules.bugzilla.query.BugzillaQuery.executeQuery(BugzillaQuery.java:458) at org.netbeans.modules.bugzilla.query.BugzillaQuery.refreshIntern(BugzillaQuery.java:168) at org.netbeans.modules.bugzilla.query.BugzillaQuery.refresh(BugzillaQuery.java:273) at org.netbeans.modules.bugzilla.query.QueryController$QueryTask.executeQuery(QueryController.java:1137) at org.netbeans.modules.bugzilla.query.QueryController$QueryTask.run(QueryController.java:1174) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)