urandom fix for JDBC

import java.sql.SQLException;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Formatter;
import java.util.Locale;

public class JdbcTest {

        public static void main(String[] args) throws SQLException {

                System.setProperty("java.security.egd", "file:///dev/urandom");
                DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());

                String url = "//192.168.1.17:1521/wailua";
                String username = "sh";
                String password = "sh123";

                System.out.println("connecting.");
                Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@" + url, username, password);

                System.out.println("Total sales by country");

                String sql = "  select c.country_name, sum (amount_sold) as dollar_sales"
                        + "    from sales s"
                        + "         join customers cus"
                        + "            on s.cust_id = cus.cust_id"
                        + "         join countries c"
                        + "            on cus.country_id = c.country_id"
                        + " group by c.country_name"
                        + " order by dollar_sales desc";

                PreparedStatement pstmt = conn.prepareStatement( sql );

                pstmt.execute();

                StringBuilder sb = new StringBuilder();
                Formatter formatter = new Formatter(sb, Locale.US);
                ResultSet rs = pstmt.getResultSet();
                while ( rs.next() )
                {
                        sb.setLength( 0 );
                        System.out.println( formatter.format("%-30s %15.2f",
                                rs.getString( 1 ), rs.getFloat( 2 )) );
                }
        }
}