Code example for UnknownHostException

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import java.sql.PreparedStatement; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.util.ArrayList; 
import java.util.Map; 
import java.util.Map.Entry; 
import java.util.logging.Level; 
import java.util.logging.Logger; 
 
import javolution.io.UTF8StreamReader; 
import javolution.util.FastMap; 
import javolution.xml.stream.XMLStreamConstants; 
import javolution.xml.stream.XMLStreamException; 
import javolution.xml.stream.XMLStreamReaderImpl; 
 
import com.l2jserver.Config; 
import com.l2jserver.L2DatabaseFactory; 
import com.l2jserver.loginserver.network.gameserverpackets.ServerStatus; 
import com.l2jserver.util.IPSubnet; 
import com.l2jserver.util.Rnd;