Utilização throw

package br.com.integrator.util;

import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.Connection;
import javax.naming.InitialContext;
import javax.sql.DataSource;

public class ConnectionFactory
	public static Connection getConnection()
	try{
		Class.forName("com.mysql.jdbc.Driver");
		DriverManager.getConnection("jdbc:mysql://localhost/livraria",
		"camilo", "123");
	}
	catch(Exception e){
		throw new Exception(e.getMessage());
	}
}

public static void closeConnection(Connection conn, Statement
	stmt, ResultSet rs)throws Exception{
	close(conn,stmt,rs);
}

public static void closeConnection(Connection conn, Statement
	stmt)throws Exception{
	close(conn,stmt,null);
}

public static void closeConnection(Connection conn)throws
	Exception{
	close(conn,null,null);
}

private static void close(Connection conn, Statement stmt,
	ResultSet rs) throws Exception{
	try{	
	if(rs!=null) rs.close();
	if(stmt!=null)stmt.close();
	if(conn!=null)conn.close();
	}catch(Exception e){
	throw new Exception(e.getMessage());
	}
	}
}