Calendar object won't update in database but does update within session
问题 I'm representing Appointments in an entity bean which have a startTime and endTime of type Calendar . This is stored using JPA as TIMESTAMP . If I edit the Appointment object's start / end time it updates on the object itself during the session but it's not updated within the database itself. Other elements such as the Appointment's description successfully update in the database.. It's only he start and end time which are not. Entity class (this is indirectly updated in the database with