Spring JPA, JSON, Security Exception No bean named 'springSecurityFilterChain' is defined - spring

Question

I apologize that this is a common question - but I am a bit lost trying to correct my code. I have a JPA/JSON/Spring Security application that is failing to start with the exception: "No bean named 'springSecurityFilterChain' is defined". I have attached my web.xml and security-context xml below. Fromwhat I can work out the later may not being loaded correctly? Any help appreciated. I have been through other questions with no luck
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>Application</display-name>
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:root-context.xml
classpath:security-context.xml
</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>api</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/api/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>api</servlet-name>
<url-pattern>/api/*</url-pattern>
</servlet-mapping>
<!-- Spring Security -->
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
security-context.xml (/WEB-INF/spring/api/security-context.xml)
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:sec="http://www.springframework.org/schema/security"
xsi:schemaLocation="
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.2.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
<!-- Rest authentication entry point configuration -->
<http auto-config="true" use-expressions="true" create-session="stateless"
entry-point-ref="restServicesEntryPoint" authentication-manager-ref="authenticationManagerForRest">
<intercept-url pattern="/api/**" />
<sec:form-login authentication-success-handler-ref="mySuccessHandler" />
<sec:access-denied-handler ref="myAuthenticationAccessDeniedHandler" />
<http-basic />
</http>
<!-- Entry point for REST service. -->
<beans:bean id="restServicesEntryPoint" class="foo.bar.RestAuthenticationEntryPoint1" />
<!-- Custom User details service which is provide the user data -->
<beans:bean id="customUserDetailsService" class="foo.bar.CustomUserDetailsService" />
<!-- Connect the custom authentication success handler -->
<beans:bean id="mySuccessHandler" class="foo.bar.RestAuthenticationSuccessHandler" />
<!-- Using Authentication Access Denied handler -->
<beans:bean id="myAuthenticationAccessDeniedHandler" class="foo.bar.RestAuthenticationAccessDeniedHandler" />
<!-- Authentication manager -->
<authentication-manager alias="authenticationManagerForRest">
<authentication-provider user-service-ref="customUserDetailsService" />
</authentication-manager>
<!-- Enable the annotations for defining the secure role -->
<global-method-security secured-annotations="enabled" />
</beans:beans>
SpringSecurityConfig.java
#Configuration
#ImportResource({ "/WEB-INF/spring/security-context.xml" })
#ComponentScan("foo.bar.security")
public class SpringSecurityConfig {
public SpringSecurityConfig() {
super();
}
}