lift/framework — pull request #1308 by kevg (2012-08-16 18:56:56+00:00)
Title: Added java.sql.Timestamp to net.liftweb.json Extraction

I ran into a problem where a Mapper MappedDateTime was not being serialized by net.liftweb.json.Extraction. It turns out this is because MappedDateTime.is returns a java.sql.Timestamp, which although is a subclass of java.util.Date, lift json did not support.