WebServiceTemplate.setInterceptors() should not be final

[gizmo71]

Alternatively, getInterceptors() should be (but that seems more wrong and would break backwards compatibility).

I tripped over this trying to use Spring AOP to weave aspects around some of the other methods in WebServiceTemplate; I couldn't work out why the interceptors weren't being called during the send/receive process, but worked fine without the aspect. Finally I noticed that setInterceptors is final but getInterceptors is not, so the set was saving the array of interceptors in the proxy but the get was retrieving them from the underlying instance (whose array was of course empty).

[gregturn]

I frankly don't see the value in opening up setInterceptors. I would favor making getInterceptors final to align with it in the next major release.

If you're in the proxy environment, you should be able to wrap this object and relay calls back and forth to the underlying delegate.