java.lang.NullPointerException
        at org.netbeans.modules.db.mysql.ServerInstance.refreshDatabaseList(ServerInstance.java:453)
        at org.netbeans.modules.db.mysql.ServerInstance$1.run(ServerInstance.java:170)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)