lhankewitz/scalainaction — comment on commit 157dc05f5dfd04bd4939b794d62fa404f37e799b
File: chap09/actor-test/src/test/scala/actortest/SpyActorSpec.scala line 17
By lhankewitz:

After moving to specs2 this line caused an error, because the be method expects a type with AnyRef as upper type bound, but infered type was Any.
(inferred type arguments [Any] do not conform to method be's type parameter bounds [T <: AnyRef] ).
This is due to the type Any of spyActor.lastOne and "must" which expects a Matcher[Any].