Old / New build systems strategy ?

[Henri Gomez]

Hi to all,

Yesterday I detected a build failure on latest Lambda trunk and send a
mail about problem to lambda-dev list.

Mike replied that problem is in old build system not updated to new
changes and lambda team is now using new build system.

I didn't recall seeing an official announce about deprecation of old
build system for jdk8's projects.

What's the official position of jdk8 and related projects about build system ?

Should we use new build system right now or did old (standard) build
system is still the reference, supported and preferred build system ?

Cheers