Using HttpClient to make a FORM based conversation

I found this blog that had some code for doing FORM based authentication conversation.
http://cocoalocker.blogspot.com/2007/01/java-ruby-http-clients.html

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So the Java code to access the servlet using form based authentication looks like this:

public static void formAuthDemo()
throws IOException, HttpException {
HttpClient client = new HttpClient();

// make the initial get to get the JSESSION cookie
GetMethod get = new GetMethod(
"http://localhost:8080/MyWebApp/myservlet");
client.executeMethod(get);
get.releaseConnection();

// authorize
PostMethod post = new PostMethod(
"http://localhost:8080/MyWebApp/j_security_check");
NameValuePair[] data = {
new NameValuePair("j_username", "tomcat"),
new NameValuePair("j_password", "tomcat")
};
post.setRequestBody(data);
client.executeMethod(post);
post.releaseConnection();

//resubmit the original request
client.executeMethod(get);
String response = get.getResponseBodyAsString();
get.releaseConnection();
System.out.println(response);
}
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