Jasig CAS: migrate from 3.4.8 to 3.4.10 LDAP error

Today I tried to migrate from CAS version 3.4.8 to 3.4.10 which resulted in the following error:

[/WEB-INF/deployerConfigContext.xml]: Initialization of bean failed;
nested exception is org.springframework.beans.factory.BeanInitializationException: Bean state is invalid: ldapTemplate - may not be null
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)

This error was produced by the following LDAP configuration:

<bean id="authenticationHandler"
class="org.jasig.cas.adaptors.ldap.BindLdapAuthenticationHandler">
<property name="filter" value="sAMAccountName=%u" />
<property name="searchBase" value="ou=xxx,dc=xxx,dc=xxx" />
<property name="contextSource" ref="contextSource" />
<property name="ignorePartialResultException" value="yes" />
</bean>

Despite that the error message suggests something different, there is no need to add a ldapTemplate property but duplicate the contextSource and rename it to searchContextSource

<bean id="authenticationHandler"
class="org.jasig.cas.adaptors.ldap.BindLdapAuthenticationHandler">
<property name="filter" value="sAMAccountName=%u" />
<property name="searchBase" value="ou=xxx,dc=xxx,dc=xxx" />
<property name="contextSource" ref="contextSource" />
<property name="searchContextSource" ref="contextSource" />
<property name="ignorePartialResultException" value="yes" />
</bean>

And now its working again!