Joe Darcy has revealed the changes accepted to be included in JDK7 on coin-dev mailing list
And the final Project Coin changes accepted are:
Improved Type Inference for Generic Instance Creation (diamond)
Simplified Varargs Method Invocation
Strings in switch
An omnibus proposal for better integral literals
Maurizio Cimadamore has just push a patch that enable to use diamond syntax to instantiate a generics.
The diamond syntax is one of the changes introduced by the
coin project and
is the first one introduced in jdk7 repository.
The diamond syntax allows to instantiate a generic type without specify the
type argument, the compiler will infer them using the context.