java.util.ConcurrentModificationException
   at java.util.ArrayList.sort(ArrayList.java:1456)
   at java.util.Collections.sort(Collections.java:175)
   at org.netbeans.modules.db.sql.editor.ui.actions.ConnectionAction$DatabaseConnectionModel.sortConnections(ConnectionAction.java:338)
   at org.netbeans.modules.db.sql.editor.ui.actions.ConnectionAction$DatabaseConnectionModel.<init>(ConnectionAction.java:270)
   at org.netbeans.modules.db.sql.editor.ui.actions.ConnectionAction$ToolbarPresenter$1.run(ConnectionAction.java:163)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)