deployerConfigContext.xml has no effect - spring

Question

I tried to get a CAS-server up and running using https://github.com/apereo/cas-overlay-template for a side project (I'm a student), but I have never used maven or spring before.
I'm trying to hook my own IPersonAttributeDao into the CAS-server. However, when I put my deployerConfigContext.xml under src/main/webapp/WEB-INF/, nothing actually changed when I repackaged (using the build script) and deployed to tomcat8. (Yes, I did restart tomcat).
Below the contents of my deployerConfigContent.xml file
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:sec="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">
<bean id="authenticationManager" class="org.jasig.cas.authentication.AuthenticationManagerImpl">
<property name="credentialsToPrincipalResolvers">
<list>
<bean id="primaryPrincipalResolver"
class="org.jasig.cas.authentication.principal.PersonDirectoryPrincipalResolver">
<property name="attributeRepository" ref="attributeRepository"/>
</bean>
<bean class="org.jasig.cas.authentication.principal.UsernamePasswordCredentialsToPrincipalResolver">
<property name="attributeRepository" ref="attributeRepository"/>
</bean>
<bean class="org.jasig.cas.authentication.principal.HttpBasedServiceCredentialsToPrincipalResolver">
<property name="attributeRepository" ref="attributeRepository"/>
</bean>
</list>
</property>
<property name="authenticationHandlers">
<list>
<bean id="primaryAuthenticationHandler"
class="org.jasig.cas.authentication.AcceptUsersAuthenticationHandler">
<property name="users">
<map>
<!-- Login stays the default casuser:Mellon, no idea why -->
<entry key="test" value="1234"/>
</map>
</property>
</bean>
<!-- DO NOT EVER PUT THIS BEAN IN PRODUCTION!!! -->
<bean class="org.jasig.cas.authentication.handler.support.SimpleTestUsernamePasswordAuthenticationHandler"/>
</list>
</property>
</bean>
<!-- <bean id="attributeRepository" class="class.i.am.trying.to.hook.in">
</bean>-->
<!-- This doesn't seem to work -->
<bean id="attributeRepository"
class="org.jasig.services.persondir.support.StubPersonAttributeDao">
<property name="backingMap">
<map>
<entry key="uid" value="uid" />
<entry key="eduPersonAffiliation" value="eduPersonAffiliation" />
<entry key="groupMembership" value="groupMembership" />
</map>
</property>
</bean>
</beans>
What am I missing?
UPDATE:
I reread the documentation (https://apereo.github.io/cas/5.0.x/), and found that deployerConfigContext.xml was supposed to be in resources, and not in webapp/WEB-INF as I found on the internet. I moved it, and now I'm finally getting errors in the log (which means the file is being read).
Error below:
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.jasig.cas.authentication.PolicyBasedAuthenticationManager] for bean with name 'authenticationManager' defined in class path resource [deployerConfigContext.xml]
I found a reference to PolicyBasedAuthenticationManager in the docs, but trying that gave the same error (with the other classname ofcourse).

Answer 1

Bean classes of enabled beans must be deployed in bean archives.
A library jar, EJB jar, application client jar or rar archive is a
bean archive if it has a file named beans.xml in the META-INF
directory. The WEB-INF/classes directory of a war is a bean archive if
there is a file named beans.xml in the WEB-INF directory of the war. A
directory in the JVM classpath is a bean archive if it has a file
named beans.xml in the META-INF directory.
One suggestion, if you are using Spring, you can also set #Annotation to define beans.