Diamond syntax with anonymous class constructors now available in JDK 9 build 59

[joe darcy]

Hello,

Thanks to efforts by Srikanth and Dan, on the javac and JLS fronts, 
respectively, anonymous classes constructors can now use diamond syntax 
(in many cases) as of JDK 9 build 59:

     https://jdk9.java.net/download/

The summary of the change is that when the inferred type for the diamond 
is denotable (no intersection types, no capture variables, etc.), then 
diamond can be used for anonymous classes. For more technical details, see:

     JDK-8062373: Project Coin: diamond and anonymous classes,
     https://bugs.openjdk.java.net/browse/JDK-8062373

     JDK-8073593: 15.9: Allow diamond to be used with anonymous classes,
     https://bugs.openjdk.java.net/browse/JDK-8073593

Please give the feature a try and report any issues to any issues to 
compiler-dev.

Thanks,

-Joe