if(activeChar.getInventory().getAdena() > 500000000) {
            int adena = activeChar.getInventory().getAdena();
            String msg = "You have "+adena+" adena, you might want to talk to the Banker NPC";
            String msg2 = " in Goddard near the Gatekeeper to change your adena into Gold Bars";
            String msg3 = " to prevent an overflow at 2,147,000,000 adena and lose it all.";
            activeChar.sendMessage(msg);
            activeChar.sendMessage(msg2);
            activeChar.sendMessage(msg3);
        }

//net.sf.l2j.gameserver.clientpackets.EnterWorld :)