public void setName(String name) {
        super.setName(name);
        String authzCacheName = this.authorizationCacheName;
        if (authzCacheName != null && authzCacheName.startsWith(getClass().getName())) {
            //get rid of the default class-name based cache name.  Create a more meaningful one
            //based on the application-unique Realm name:
            this.authorizationCacheName = name + DEFAULT_AUTHORIZATION_CACHE_SUFFIX;
        }
    }
The cache used by this realm to store AuthorizationInfo instances associated with individual Subject principals.
core/src/main/java/org/apache/shiro/realm/AuthorizingRealm.java