Bug fix for the job manager backend test, to catch a spurious exception during shutdown.
Bug fix for the job manager backend test, to catch a spurious exception during shutdown.

kaze/paasmaker,kaze/paasmaker,kaze/paasmaker,paasmaker/paasmaker,paasmaker/paasmaker,paasmaker/paasmaker,kaze/paasmaker,paasmaker/paasmaker,kaze/paasmaker,paasmaker/paasmaker