Clicking "Create" generates a 404.
Solution:
in /WEB-INF/spring/webmvc-context.xml add
<!-- URL to flow mapping rules -->
<bean id="flowMappings"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"
p:order="0">
<property name="mappings">
<value>/person.html=personFlowHandler</value>
</property>
</bean>
after the context:component-scan.