[threeten-dev] Changing Chronology to an interface and AbstractChronology

[roger riggs]

Changing Chronology to an interface is a positive step as suggested by #341
and JBS https://jbs.oracle.com/bugs/browse/JDK-8025719.

The suggsted fix includes the definition AbstractChronology<D extends 
ChronoLocalDate>
and proposes cleanup of the subclasses based on the generic type.
This feature was not present in the proposed patch.
Has the suggestion been withdrawn?

Thank, Roger
[1] webrev: 
http://cr.openjdk.java.net/~rriggs/webrev-chrono-interface-8025719/