Informix jdbc connection

The problem I ran into was that Informix was listening on the local IPv6 address on port 7360, the command netstat -adisplayed this format:

TCP    [feab::11ab:78ab:efab:8aab%17]:7360  myhostname:0      LISTENING

So my jdbc connection always failed until it turned out that I should use the IPv6 address in the url:

jdbc:informix-sqli://fe80::1125:78c0:ef17:8ab5%17:7360:user=informix;password=test;INFORMIXSERVER=ol_informix1210_2

You can verify that the connection works with this simple script:

/***************************************************************************
 *
 *  Title:         SimpleConnection.java
 *
 *  Description:    Demo a connection to a server (no database specified)
 *      
 *  An example of running the program: 
 *      
 *   java SimpleConnection 
 *      'jdbc:informix-sqli://myhost:1533:user=<username>;password=<password>'
 *      
 *   Expected result:
 * 
 * >>>Simple Connection test.
 * URL = "jdbc:informix-sqli://myhost:1533:user=<username>;password=<password>"
 * >>>End of Simple Connection test.
 * 
 ***************************************************************************
 */

import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class SimpleConnection {

    public static void main(String[] args) {
        if (args.length == 0) {
            System.out.println("FAILED: connection URL must be provided in order to run the demo!");
            return;
        }

        String url = args[0];

        String testName = "Simple Connection";

        Connection conn = null;

        System.out.println(">>>" + testName + " test.");
        System.out.println("URL = \"" + url + "\"");

        try {
            Class.forName("com.informix.jdbc.IfxDriver");
        } catch (Exception e) {
            System.out.println("FAILED: failed to load Informix JDBC driver.");
        }

        try {
            PrintWriter out = new PrintWriter(System.out, true);
            DriverManager.setLogWriter(out);
            conn = DriverManager.getConnection(url);
        } catch (SQLException e) {
            System.out.println("FAILED: failed to connect!");
        }

        try {
            conn.close();
        } catch (SQLException e) {
            System.out.println("FAILED: failed to close the connection!");
        }

        System.out.println(">>>End of " + testName + " test.");
    }
}