playframework/play — pull request #379 by opensas (2011-11-11 14:45:43+00:00)
Title: 1239 unsign eclipse jdt core

see this ticket

https://play.lighthouseapp.com/projects/57987-play-framework/tickets/1239-error-deploying-to-gae-14-with-play-124rc2#ticket-1239-2

and this

https://bugs.launchpad.net/play/+bug/594316