[DRILL-8072] Fix NPE in HTTP Post Requests

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.19.0
• Fix Version/s: 1.20.0
• Component/s: Storage - Other
• Assignee: Charles Givre
• Reporter: Charles Givre
• Created: 07/Dec/21 19:20
• Updated: 03/Jan/22 17:02
• Resolved: 03/Jan/22 17:02

Description

There was a minor bug in the HTTP Storage Plugin with POST requests.  If the `postBody` configuration parameter is null, the plugin throws an NPE. 

This PR adds a null check which prevents the NPE.