HttpMetricsTest_Http20.TimeInQueue_RecordedForNewConnectionsOnly test failure

[jkotas]

    System.Net.Http.Functional.Tests.HttpMetricsTest_Http20.TimeInQueue_RecordedForNewConnectionsOnly [FAIL]
      Assert.Equal() Failure: Values differ
      Expected: 1
      Actual:   2
      Stack Trace:
        /_/src/libraries/System.Net.Http/tests/FunctionalTests/MetricsTest.cs(907,0): at System.Net.Http.Functional.Tests.HttpMetricsTest.<TimeInQueue_RecordedForNewConnectionsOnly>b__26_0(Uri uri)
        /_/src/libraries/Common/tests/System/Threading/Tasks/TaskTimeoutExtensions.cs(120,0): at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task)

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1230390
Build error leg or test failing: System.Threading.Threads.Tests.ThreadTests.IsBackgroundTest
Pull request: #122513

Error Message

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

{
  "ErrorMessage": ["HttpMetricsTest_Http20.TimeInQueue_RecordedForNewConnectionsOnly [FAIL]","Values differ"],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1230390
Error message validated: [HttpMetricsTest_Http20.TimeInQueue_RecordedForNewConnectionsOnly [FAIL] Values differ]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 12/13/2025 9:46:21 AM UTC

Report

Build	Definition	Test	Pull Request
1278545	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_Finalization_Http3.IncompleteResponseStream_ResponseDropped_CancelsRequestToServer	#122955
1257611	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_ConnectCallback_Http2.ConnectCallback_UseNamedPipe_Success	#121412
1257541	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_ConnectCallback_Http2.ConnectCallback_ConnectionPrefix_Success	#123327
1255049	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_ActivityIsCreatedIfRequested	#120306
1254685	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http3.SendAsync_ActivityIsCreatedIfRequested	#119575

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	1	5

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[SakeTao]

Failed in: runtime-coreclr libraries-jitstress 20251214.1

Failed tests:

net11.0-linux-Release-x64-jitstress2-AzureLinux.3.Amd64.Open
    - System.Threading.Threads.Tests.ThreadTests.IsBackgroundTest

Error message:

Assert.Throws() Failure: No exception was thrown
Expected: typeof(System.Threading.ThreadStateException)

Stack trace:

   at System.Threading.Threads.Tests.ThreadTests.IsBackgroundTest() in /_/src/libraries/System.Threading.Thread/tests/ThreadTests.cs:line 580
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) in /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs:line 36
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 57

[ManickaP]

There's tons of re-runs of this as well. We should look into it and fix it. This is likely a test-bug.