?meterware? WebConversation jar

Meterware, <http://www2.meterware.com:8080/> sponsors HttpUnit?

<http://httpunit.sourceforge.net/doc/api/com/meterware/httpunit/
WebConversation.html>

This is part of the official http unit, in the JAR? I ask becuase I
downloaded <http://mvnrepository.com/artifact/httpunit/httpunit/1.6.2>
(haven't got ivy fully functional) and cannot seem to import the
requisite class.

I'm getting "Cannot find symbol" for WebConversation, as it's not
imported, because it's not in the jar which I downloaded, and am a bit
leery about running about downloading unknown (to me) JAR's.

package auth;

import junit.framework.TestCase;

public class CarCruisesTest extends TestCase {

    public void testGetPAJuneCarcruises() {
        String sURL = "http://carcruises.com/" +
                "cruise_list.asp?month_select=6&" +
                "state=Pennsylvania";

        try {
            // Create the conversation object,
            // which will maintain state for us
            WebConversation conversation = new WebConversation();
            WebRequest request = new GetMethodWebRequest(sURL);
            WebResponse response = conversation.getResponse(request);
        } catch (Exception ex) {
            ex.printStackTrace();
            // Fail the test if an exception is thrown.
            super.fail(ex.getMessage());
        }
    }
}

thanks,

Thufir