The Threeten project [1] is planned to be integrated into OpenJDK with
the M6 milestone.
The javadoc [2] (aka JSR 310 specification) for the new Java Time packages
is available for review. Comments can be sent to the threeten-dev email
list [3] or
entered in the issue tracker [4].
When Threeten is incorporated in M6, the regular jdk8 build can be used by
developers to provide feedback based on concrete experience.
The Threeten API will continue to be refined. Feedback will be evaluated
for inclusion in the public review of JSR 310 and subsequent JDK builds.
[1] http://openjdk.java.net/projects/threeten/
[2] http://cr.openjdk.java.net/~rriggs/threeten-javadoc/
[3] threeten-dev @ openjdk.java.net
[4] https://github.com/ThreeTen/threeten/issues
