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lang.NullPointerException: 	at java.util.Hashtable.put(Hashtable.java:394)	at com.thortech.xl.dataobj.util.tcEmailNotificationUtil.sendEmail(Unknown Source)	at com.thortech.xl.dataobj.tcScheduleItem.checkForEmailNotification(Unknown Source)	at com.thortech.xl.dataobj.tcScheduleItem.eventPostUpdate(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.update(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)	at com.thortech.xl.adapterfactory.events.tcAdpEvent.updateSchItem(Unknown Source)	at com.thortech.xl.adapterfactory.events.tcAdpEvent.finalizeProcessAdapter(Unknown Source)	at com.thortech.xl.adapterfactory.events.tcAdpEvent.finalizeAdapter(Unknown Source)	at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpOIDMODIFYUSER.implementation(adpOIDMODIFYUSER.java:81)	at com.thortech.xl.client.events.tcBaseEvent.run(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.runEvent(Unknown Source)	at com.thortech.xl.dataobj.tcScheduleItem.runMilestoneEvent(Unknown Source)	at com.thortech.xl.dataobj.tcScheduleItem.eventPostInsert(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)	at com.thortech.xl.client.events.tcTriggerUserProcesses.insertMileStones(Unknown Source)	at com.thortech.xl.client.events.tcTriggerUserProcesses.trigger(Unknown Source)	at com.thortech.xl.client.events.tcUSRTriggerUserProcesses.implementation(Unknown Source)	at com.thortech.xl.client.events.tcBaseEvent.run(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.runEvent(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.eventPostUpdate(Unknown Source)	at com.thortech.xl.dataobj.tcUSR.eventPostUpdate(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.update(Unknown Source)	at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)	at com.thortech.xl.dataobj.tcTableDataObj.save(Unknown Source)	at com.thortech.xl.ejb.beansimpl.tcUserOperationsBean.updateUserData(Unknown Source)	at com.thortech.xl.ejb.beansimpl.tcUserOperationsBean.updateUser(Unknown Source)	at com.thortech.xl.ejb.beans.tcUserOperationsSession.updateUser(Unknown Source)	at com.thortech.xl.ejb.beans.tcUserOperations_voj9p2_EOImpl.updateUser(tcUserOperations_voj9p2_EOImpl.java:1763)	at Thor.API.Operations.tcUserOperationsClient.updateUser(Unknown Source)	at sun.reflect.GeneratedMethodAccessor485.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)