cucumber/cucumber-jvm — pull request #617 by ffbit (2013-10-27 13:07:24+00:00)
Title: TimeConverter used to use the SimpleDateFormat

The last one is [not thread safe](http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html#synchronization).
So, this commit returns a new SimpleDateFormat instance for every request.