title: Does Spring Security require a custom login controller when providing a custom login form?
body: <p>Does <a href="http://projects.spring.io/spring-security/" rel="nofollow">Spring Security</a> <a href="https://github.com/spring-projects/spring-security/tree/4.0.1.RELEASE" rel="nofollow">4.0.1.RELEASE</a> require a custom login controller when providing a custom JSP page containing a login form composed of two input fields, user name and password?  Spring Security sample application <a href="https://github.com/spring-projects/spring-security/tree/4.0.1.RELEASE/samples/chat-jc" rel="nofollow"><code>spring-security-samples-chat-jc</code></a> has a very simple one, but <a href="https://github.com/spring-projects/spring-security/tree/4.0.1.RELEASE/samples/form-jc" rel="nofollow"><code>spring-security-samples-form-jc</code></a> doesn't define one at all. </p>