Improve Bamboo Specs error logging when Bamboo is completing background deletion on a plan

Problem Definition

After we submit a plan to Bamboo using Bamboo Specs, after we delete it from the Bamboo UI there is a small delay while Bamboo completes background deletion tasks. If the plan is resubmitted via Specs it fails with unhelpful error message (even with DEBUG enabled):

2017-05-19 15:43:58,061 INFO [BambooServer] Publishing plan PRJ-PLANKEY4
2017-05-19 15:43:58,480 INFO [BambooServer] An error occurred while publishing plan PRJ-PLANKEY4: No value present
2017-05-19 15:43:58,481 DEBUG [BambooServer] {"message":"No value present","status-code":500}

Suggested Solution

Provide an error message that informs the user why the plan was rejected.