33 lines
861 B
Markdown
33 lines
861 B
Markdown
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## ConcurrentQueue<T>.TryPeek can return an erroneous null via its out parameter
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### Scope
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Major
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### Version Introduced
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4.5
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### Version Reverted
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4.5.1
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### Source Analyzer Status
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Available
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### Change Description
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In some multi-threaded scenarios, `ConcurentQueue<T>.TryPeek` can return true, but populate the out parameter with a null value (instead of the correct, peeked value).
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- [ ] Quirked
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- [ ] Build-time break
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### Recommended Action
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This issue is fixed in the .NET Framework 4.5.1. Upgrading to that Framework will solve the issue.
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### Affected APIs
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* ``M:System.Collections.Concurrent.ConcurrentQueue`1.TryPeek(`0@)``
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### Category
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Core
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[More information](http://connect.microsoft.com/VisualStudio/feedback/details/762273/bug-in-concurrentqueue-in-net-4-5-trypeek-returns-true-but-no-real-object-returned)
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<!-- breaking change id: 95 -->
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