ConfigurationOrderMonitor throws an error occurred in spooler_process_before: null

Current Situation

• User configure a stand-alone job with the configuration monitor sos.scheduler.managed.configuration.ConfigurationOrderMonitor
• When Job is executed the job throws a warning

  
  2018-11-12 10:40:00.004+0100 [info]   SCHEDULER-726  Task runs on this JobScheduler 'http://EC2AMAZ-D2SBRU6:4410'
  2018-11-12 10:40:00.004+0100 [info]   SCHEDULER-918  state=starting (at=never)
  2018-11-12 10:40:00.770+0100 [WARN]   error occurred in spooler_process_before: null
  2018-11-12 10:40:04.442+0100 [WARN]   SCHEDULER-320  Could not send mail
  

How to reproduce

• Deploy attached folder Ticket#2018111210000011.zip in the ./config/live folder
• From JOC change the run time to e.g. 14:35 so that job is executed some other time then scheduled time.
• Job wil be executed on changed run time, Check the task log for the error.

Note

The given configuration makes no sense as ConfigurationOrderMonitor can only be used with order job (order=yes) as the name of the monitor also indicates. But there should be no NPE. Therefore the change is that the monitor returns always true and does nothing if it is used in a standalone job.