Prior to this commit, when ReflectionTestUtils was used to invoke a
method on a CGLIB proxy, the invocation was always performed directly
on the proxy. Consequently, if the method was not proxied/intercepted
by the CGLIB proxy -- for example, if the method was final or
effectively private -- the invoked method could not operate on the
state of the target object or interact with other private methods in
the target object.
With this commit, if the supplied target object is a CGLIB proxy which
does not intercept the method, the proxy will be unwrapped allowing the
method to be invoked directly on the ultimate target of the proxy.
Closes gh-33429
38a56b3fda