I am seeing strange crashes or ClassNotFound exceptions - what can I do?
HeadsUp Agile requires Oracle Java 1.6 or later. Unfortunately the open-jdk which some systems provide by default is not sufficient at this stage.
Notification emails are not sending on Mac OSX
There is a known issue with sending emails through gmail using java in recent releases of Mac OSX.
The workaround is to manually install a certificate into the java keychain. Documentation of this process can be found here.
If you are looking for step by step instructions you might want to check out: