Sometimes the application server where the IdM application is deployed, doesnot come back-up as expected after a maintenance restart. This could be due to the hung Source Adapter Task. To overcome this problem, delete the "source adapter task" TaskInstance if it shows-up on the list.
Run the following commands from the lh console:
listO TaskInstance (if Source Adapter Task shows up on the list, then delete it)
delete TaskInstance "Source Adpater Task"
delete TaskSchedule SourceAdapterTask
Now, restarting the server should work smoothly.
