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package board;import java.sql.*;import java.util.*;import board.*;class ConnectionInfo{public Connection connection = null;public long time = 0;public ConnectionInfo(Connection connection, long time){this.connection= connection;this.time = time;}} public class ConnectionPool {private static int MAX_CONNECTION = 5;private Vector buffer = new Vector();private int wait_count = 0;private static Conn..

package board;import java.sql.*; public class ConnectionFactory {private static ConnectionFactory connectionFactory = new ConnectionFactory();private ConnectionFactory(){};public static ConnectionFactory getDefaultFactory(){if(connectionFactory == null){connectionFactory = new ConnectionFactory();}return connectionFactory;}public static Connection createConnection(){Connection connection = null;..