Rule Definition
A null returned from a non-async Task/Task will result in a NullPointerException at runtime.
Remediation
Return Task.FromResult(null) instead
Violation Code Sample
Task<string> DemoMethodAsync(CancellationToken token) {
DoThings();
return null;
}
Fixed Code Sample
Task<string> DemoMethodAsync(CancellationToken token) {
DoThings();
return Task.FromResult<string>(null);
}
Related Technologies
Technical Criterion
Programming Practices - Unexpected Behavior
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