I have created a Plugin for JIRA and my plugin will listen to all the issue Events and version events.
When i am creating an version object or release object in pop way method i.e., normally there are 2 ways of creating version object one is normally created by clicking releases on left side and another way is by using pop up way.
In this pop way of creating version with timeliness of dates startdate is flowing as null to the plugin .
For reference i am attaching the images.