Solution : https://service.sap.com/sap/support/notes/1323328 (SAP Service marketplace login required)
Key words :
step type dropdown listbox isnot editable, assigned ad-hoc workflow task, null pointer exception appears, null pointer exception thrown, internal server error thrown, appearing uwl detail message, internal server error displayed, java workflow task list, forwarding task usingjava workflow, task list table
Related Notes :
| 1133821 | UWL Destination Service configuration |