java.lang.IncompatibleClassChangeError
        at net.sf.l2j.gameserver.serverpackets.CharSelected.writeImpl(CharSelected.java:104)
        at net.sf.l2j.gameserver.serverpackets.ServerBasePacket.write(ServerBasePacket.java:130)
        at net.sf.l2j.gameserver.SelectorThread.pack(SelectorThread.java:506)
        at net.sf.l2j.gameserver.SelectorThread.processOutboudQueue(SelectorThread.java:613)
        at net.sf.l2j.gameserver.SelectorThread.run(SelectorThread.java:233)