Exception in thread "Thread-5" java.lang.NullPointerException
        at javolution.util.FastCollection$FastIterator.next(FastCollection.java:
547)
        at net.sf.l2j.gameserver.Shutdown.disconnectAllCharacters(Shutdown.java:
365)
        at net.sf.l2j.gameserver.Shutdown.saveData(Shutdown.java:333)
        at net.sf.l2j.gameserver.Shutdown.run(Shutdown.java:167)

server terminated