tree eec07e575fab3ddb243460b2c4ccbc9b725e60e5
parent 40d182e212b6deb4109e842687714bc5bf8e8bbb
author Ray Milkey <ray@opennetworking.org> 1556045523 -0700
committer Ray Milkey <ray@opennetworking.org> 1556051903 +0000

Prevent unhandled exception if the executor is already shut down.

Change-Id: I63b2f093fea90d99c85cfe8ffa2a264eee56d981