NullReferenceException #326

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opened 2025-12-29 08:26:14 +01:00 by adam · 2 comments

adam commented 2025-12-29 08:26:14 +01:00

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Originally created by @CoderNate on GitHub (Jan 24, 2021).

Originally assigned to: @StefH on GitHub.

https://github.com/WireMock-Net/WireMock.Net/blob/e8181e9d53622bc3f1faa564332f4e87a0a18314/src/WireMock.Net/Server/WireMockServer.Admin.cs#L264

I get a NullReferenceException here when a request fails due to mapping being null. It looks like calling proxyHelper.SendAsync returns null for a mapping if the status code was not successful. The next if statement right below this also has the same issue.

Originally created by @CoderNate on GitHub (Jan 24, 2021). Originally assigned to: @StefH on GitHub. https://github.com/WireMock-Net/WireMock.Net/blob/e8181e9d53622bc3f1faa564332f4e87a0a18314/src/WireMock.Net/Server/WireMockServer.Admin.cs#L264 I get a NullReferenceException here when a request fails due to ``mapping`` being null. It looks like calling proxyHelper.SendAsync returns null for a mapping if the status code was not successful. The next if statement right below this also has the same issue.

adam added the bug label 2025-12-29 08:26:14 +01:00

adam closed this issue 2025-12-29 08:26:15 +01:00

adam commented 2025-12-29 08:26:15 +01:00

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@StefH commented on GitHub (Jan 24, 2021):

Hello @CoderNate ,

Thanks for the information.

However I think you mean that these line can fail:

 _options.Mappings.TryAdd(mapping.Guid, mapping);

// and

 _mappingToFileSaver.SaveMappingToFile(mapping);

Correct?

@StefH commented on GitHub (Jan 24, 2021): Hello @CoderNate , Thanks for the information. However I think you mean that these line can fail: ``` c# _options.Mappings.TryAdd(mapping.Guid, mapping); // and _mappingToFileSaver.SaveMappingToFile(mapping); ``` Correct?

adam commented 2025-12-29 08:26:15 +01:00

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@CoderNate commented on GitHub (Jan 25, 2021):

Yes, that's right; my mistake. Thanks.
And hey cool project! Nice work!

@CoderNate commented on GitHub (Jan 25, 2021): Yes, that's right; my mistake. Thanks. And hey cool project! Nice work!

adam referenced this issue 2025-12-29 08:33:48 +01:00

[PR #326] [MERGED] Fix Parsing Guid in PUT Mapping #860

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Reference: starred/WireMock.Net#326