checked exceptions :), sorry just kidding.

mainly wildcards, you can design an interface which is covariant and contravariant, and real interference when calling a generic method.

The lack of wildcard types in C# consistently bothers me when I use it.

It looks to me like C# supports everything from http://docs.oracle.com/javase/tutorial/extra/generics/wildca... using generic type constraints: http://msdn.microsoft.com/en-us/library/bb384067.aspx

What am I missing?

They added Covariance and Contravariance of generic type parameters in 4. http://msdn.microsoft.com/en-us/library/dd799517%28v=vs.110%...

static imports ?

You could add an extension method to object, if you want the same effect.

(Although: A workaround for java's bizarre stance that no function can exist without an object doesn't really strike me as a "feature". [Granted: this criticism is equally true of C#])

It's in C# 6 :)