Advisors or advices requiring ordering should implement the
Ordered interface. This class sorts
Advisors by Ordered order value. Advisors that don't implement the
Ordered interface will be considered as unordered; they will appear
at the end of the advisor chain in undefined order.
an array of additional interceptors for the particular bean;
or an empty array if no additional interceptors but just the common ones;
or null if no proxy at all, not even with the common interceptors.
See constants DO_NOT_PROXY and PROXY_WITHOUT_ADDITIONAL_INTERCEPTORS.