System.Net.Http.Functional.Tests: Exception type was not an exact match

[jkotas]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1057538
Build error leg or test failing: System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandlerTest.GetAsync_IncompleteData_ThrowsHttpRequestException
Pull request: #115339

Error Message

Fill the error message using step by step known issues guidance.

{
 "ErrorMessage": ["System.Net.Http.Functional.Tests","Assert.Throws() Failure: Exception type was not an exact match"],
 "ErrorPattern": "",
 "BuildRetry": false,
 "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1057538
Error message validated: [System.Net.Http.Functional.Tests Assert.Throws() Failure: Exception type was not an exact match]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 6/3/2025 7:55:49 PM UTC

Report

Build	Definition	Test	Pull Request
1076403	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo	#113956
1075929	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#116844
1075415	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo	#116915
1075329	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1074982	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo
1074907	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#116895
1074234	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo	#116868
1073929	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo	#116868
1073667	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithLatin1HeaderValue_Succeeds	#116634
1073115	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1072084	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#116659
1071719	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo	#116793
1068955	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_Expect100Continue_RequestBodyFails_ThrowsContentException	#115996
1068894	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1067068	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#116619
1066780	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo	#113697
1065070	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_OperationCanceledException_RecordsActivitiesWithCorrectErrorInfo	#116383
1064489	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#116481
1064243	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#113956
1057538	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandlerTest.GetAsync_IncompleteData_ThrowsHttpRequestException	#115339

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
2	12	20

[jkotas]

Full log:

[FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpRequestErrorTest_Http30.SecureConnectionError
Assert.Throws() Failure: Exception type was not an exact match
Expected: typeof(System.Net.Http.HttpRequestException)
Actual: typeof(Xunit.Sdk.SameException)
---- Assert.Same() Failure: Values are not the same instance
Expected: Activity { ActivityTraceFlags = None, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "parent", Duration = 00:00:00, ··· }
Actual: null
--- End of stack trace from previous location ---
 at System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpRequestErrorTest.<<SecureConnectionError>b__3_0>d.MoveNext() + 0x242
--- End of stack trace from previous location ---
 at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task) + 0x22
--- End of stack trace from previous location ---
 at System.Threading.Tasks.TaskTimeoutExtensions.<WhenAllOrAnyFailed>d__10.MoveNext() + 0x1bf
--- End of stack trace from previous location ---
 at System.Net.Test.Common.LoopbackServerFactory.<>c__DisplayClass6_0.<<CreateClientAndServerAsync>b__0>d.MoveNext() + 0x6c
--- End of stack trace from previous location ---
 at System.Net.Test.Common.Http3LoopbackServerFactory.<CreateServerAsync>d__7.MoveNext() + 0xb8
--- End of stack trace from previous location ---
 at System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpRequestErrorTest.<SecureConnectionError>d__3.MoveNext() + 0x5a
--- End of stack trace from previous location ---
--- End of stack trace from previous location ---
--- End of stack trace from previous location ---
----- Inner Stack Trace -----
 at System.Net.Test.Common.ActivityRecorder.<.ctor>b__36_2(Activity activity) + 0x4b
 at System.Diagnostics.SynchronizedList`1.EnumWithAction(Action`2, Object) + 0x31
 at System.Diagnostics.Activity.Start() + 0x146
 at System.Diagnostics.Activity.Create(ActivitySource, String, ActivityKind, String, ActivityContext, IEnumerable`1, IEnumerable`1, DateTimeOffset, ActivityTagsCollection, ActivitySamplingResult, Boolean, ActivityIdFormat, String) + 0x3a1
 at System.Diagnostics.ActivitySource.CreateActivity(String, ActivityKind, ActivityContext, String, IEnumerable`1, IEnumerable`1, DateTimeOffset, Boolean, ActivityIdFormat) + 0x6c0
 at System.Diagnostics.ActivitySource.StartActivity(String, ActivityKind) + 0x8a
 at System.Net.Http.DiagnosticsHandler.StartActivity(HttpRequestMessage) + 0x51
 at System.Net.Http.DiagnosticsHandler.<SendAsyncCore>d__9.MoveNext() + 0x101
--- End of stack trace from previous location ---
 at System.Net.Http.RedirectHandler.<SendAsync>d__4.MoveNext() + 0x1e8
--- End of stack trace from previous location ---
 at System.Net.Http.SocketsHttpHandler.<<SendAsync>g__CreateHandlerAndSendAsync|113_0>d.MoveNext() + 0x10b
--- End of stack trace from previous location ---
 at System.Net.Http.HttpClient.<<SendAsync>g__Core|83_0>d.MoveNext() + 0x399
--- End of stack trace from previous location ---

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[antonfirsov]

Triage: let's monitor for a while and see if it happens again.

[antonfirsov]

The ErrorMessage seems to match different unrelated issues, but the failure in #116279 (comment) should be fixed by #116741.

[jkotas]

The ErrorMessage seems to match different unrelated issues

The failures are hit in different tests, but all of them have to do with ActivityRecorder.

I just saw a hit in this test: 

[FAIL] System.Net.Http.Functional.Tests.HttpMetricsTest_Http20_HttpMessageInvoker.ActiveRequests_Redirect_RecordedForEachHttpSpan(credentialsMode: 1)
Faulted: System.AggregateException: One or more errors occurred. (Assert.Same() Failure: Values are not the same instance
Expected: Activity { ActivityTraceFlags = None, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "parent", Duration = 00:00:00, ··· }
Actual: null)
 ---> Xunit.Sdk.SameException: Assert.Same() Failure: Values are not the same instance
Expected: Activity { ActivityTraceFlags = None, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "parent", Duration = 00:00:00, ··· }
Actual: null
 at Xunit.Assert.Same(Object, Object) + 0x60
 at System.Net.Test.Common.ActivityRecorder.<.ctor>b__36_2(Activity activity) + 0x50
 at System.Diagnostics.SynchronizedList`1.EnumWithAction(Action`2, Object) + 0x40
 at System.Diagnostics.Activity.Start() + 0x148