submit « HTMLUnit « Java Testing Q&A

1. virtual web browser submit using HtmlUnit + Java    stackoverflow.com

I'm trying to sign in to yahoo.com using HtmlUnit. But it doesn't work when my program trying to click "Sign In" button. My code is:

import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import ...