Injecting list of parametrized beans is not supported by Spring 3 for AsyncFactoryBean

[arteymix]

Because Future<MyService> are parametrized beans, it's not possible to inject them with Spring 3.

In general, you can get away with it using a @Qualifier and name specifically the bean you need, but it does not work for a List<Future<MyService>>.

One viable workaround is to inject List<MyServiceFactory> instead.

Should be dealt with in #508