Returning ``Nothing`` from a non-``async`` ``Task``/``Task(Of T)`` method will cause a ``NullReferenceException`` at runtime. This problem can be avoided by returning ``Task.FromResult(Of T)(Nothing)`` instead.
== Noncompliant Code Example
----
Public Function GetFooAsync() As Task(Of Object)
Return Nothing
End Function
== Compliant Solution
Return Task.FromResult(Of Object)(Nothing)
