Change references to the secure managers
For using the new secure manager, the references in the config files have to be changed. Basically, there are two possibilities:
Rename the basic manager
Change the name of the PersonManager from 'personManager' to something like 'personManagerInsecure'. Then the value of the 'ref'-Attribute of the 'personManagerSecure' has to be changed as well.
Change references to the insecure manager
In this case, you have to search for all beans in the configuration files, that have a reference to 'personManager' and change this reference to 'personManagerSecure'.