[Mono-dev] WeakReference problem

Tobias Käs tobias.kaes at gmx.de
Wed Jan 29 22:00:02 UTC 2014

Hi, the generic WeakReference<T> for .NET 4.5 sometimes returns true 
from TryGetTarget even though the target has been collected (the 
out-value is correctly set to null). All my WeakReferences have been 
initialized with non-null values.

Looking at the source at github I can imagine that there is a race 
between the handle.IsAllocated check and the handle.Target retrieval, 
but I'm no expert. Should I file a bug on that one? I'm not sure what 
the expected behavior is since MSDN documentation of that method isn't 
so great, but if the caller has to check the out-value against null 
anyways, then the return value becomes kinda pointless in my opinion.


More information about the Mono-devel-list mailing list