Inventory does not work when there is a job without a script

Current Situation

• When a user commits an error during configuration of a job and creates a job that does not have a script then the Inventory Plugin crashes.
• In the scheduler.log file there are exceptions reported like

  17 13:38:19.307 com.sos.jitl.inventory.data.InventoryEventUpdateUtil [ERROR] - [inventory] error occured processing event on Job:/test/job3
  java.lang.NullPointerException
  	at com.sos.jitl.inventory.data.InventoryEventUpdateUtil.processJobEvent(InventoryEventUpdateUtil.java:1084)
  	at com.sos.jitl.inventory.data.InventoryEventUpdateUtil.processEvent(InventoryEventUpdateUtil.java:845)
  	at com.sos.jitl.inventory.data.InventoryEventUpdateUtil.processGroupedEvents(InventoryEventUpdateUtil.java:465)
  	at com.sos.jitl.inventory.data.InventoryEventUpdateUtil.processEventType(InventoryEventUpdateUtil.java:808)
  	at com.sos.jitl.inventory.data.InventoryEventUpdateUtil.execute(InventoryEventUpdateUtil.java:257)
  	at com.sos.jitl.inventory.data.InventoryEventUpdateUtil.execute(InventoryEventUpdateUtil.java:228)
  	at com.sos.jitl.inventory.plugins.InitializeInventoryInstancePlugin.executeEventBasedInventoryProcessing(InitializeInventoryInstancePlugin.java:274)
  	at com.sos.jitl.inventory.plugins.InitializeInventoryInstancePlugin.access$300(InitializeInventoryInstancePlugin.java:45)
  	at com.sos.jitl.inventory.plugins.InitializeInventoryInstancePlugin$2.run(InitializeInventoryInstancePlugin.java:134)
  	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
  	at java.util.concurrent.FutureTask.run(Unknown Source)
  	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
  	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  	at java.lang.Thread.run(Unknown Source)
  

• Please note that a job without a script is an invalid configuration.

Desired Behavior

• When there is a job without script element than the Inventory Plugin should handle this misconfigured job correctly.

Workaround

• Write a correct job.