Android WebSocket failure

[ManickaP]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1197968
Build error leg or test failing: System.Net.WebSockets.Client.Tests.WorkItemExecution
Pull request: #120716

Error Message

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

{
  "ErrorMessage": "[FAIL] System.Net.WebSockets.Client.Tests",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1197968
Error message validated: [[FAIL] System.Net.WebSockets.Client.Tests]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 11/11/2025 7:46:28 AM UTC

Report

Build	Repository	Test	Pull Request
1554880	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1554672	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1554547	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132358
1554225	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#132347
1553802	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.SendAsync_Cancel_Success	#131969
1552350	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131969
1551686	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131969
1551099	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#132223
1550408	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131783
1550309	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131538
1550229	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131969
1549325	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#128675
1549342	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#132179
1549337	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132186
1549067	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.SendAsync_Cancel_Success	#132163
1548778	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#132136
1548739	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131772
1548649	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132139
1547774	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132098
1547716	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_Invoker_Http2Loopback.SendAsync_Cancel_Success	#131225
1547709	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_Invoker_Http2Loopback.SendAsync_Cancel_Success	#129118
1547490	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131972
1547505	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131552
1547469	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131821
1547356	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#132097
1547055	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.SendAsync_Cancel_Success	#132082
1546342	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_Invoker_Http2Loopback.SendAsync_Cancel_Success	#129506
1546338	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132065
1545837	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132047
1545618	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.SendAsync_Cancel_Success	#132043
1545295	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#132032
1544637	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131972
1544627	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131993
1544179	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#130688
1543955	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131986
1543958	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131987
1543388	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131908
1543597	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131907
1543452	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131972
1543290	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_Invoker_Loopback.SendAsync_Cancel_Success	#130505
1542940	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131953
1542638	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131943
1542650	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131879
1542524	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131788
1542432	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131916
1542376	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131538
1542282	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131869
1542150	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#129853
1541801	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131908
1541736	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131352
1541467	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131894
1541335	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131552
1541067	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131879
1541052	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131877
1540904	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.SendAsync_Cancel_Success	#131806
1540960	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_Invoker_Http2Loopback.SendAsync_Cancel_Success	#131788
1540572	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131765
1540520	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131855
1540472	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131845
1540129	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_Invoker_Loopback.SendAsync_Cancel_Success	#131177
1540188	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Http2Loopback.SendAsync_Cancel_Success	#131835
1540085	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_Invoker_Loopback.SendAsync_Cancel_Success	#131834
1540106	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131836
1540014	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131833
1537757	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131024
1534812	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131648
1534426	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131593
1532745	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131571
1532204	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131024
1531891	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131544
1531548	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131481
1530245	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131489
1529572	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131458
1528007	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#128626
1527700	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1527109	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131387
1526936	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1526281	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1524472	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1523830	dotnet/runtime	WasmTestOnChrome-ST-System.Net.WebSockets.Client.Tests.WorkItemExecution	#131278
1523812	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131115
1522990	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131251
1522836	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1522652	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#130367
1522426	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131239
1520718	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#129019
1519262	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131080
1518977	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#124721
1519047	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#130838
1518068	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#130622
1518037	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#131084
1516995	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1516704	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#130207

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
2	28	93

[ManickaP]

Full details in https://helixr1107v0xdcypoyl9e7f.blob.core.windows.net/dotnet-runtime-refs-pull-120716-merge-b5c787ac89da4718ab/System.Net.WebSockets.Client.Tests/2/console.f54a922f.log?skoid=8eda00af-b5ec-4be9-b69b-0919a2338892&sktid=72f988bf-86f1-41af-91ab-2d7cd011db47&skt=2025-11-11T07%3A43%3A14Z&ske=2025-11-11T08%3A43%3A14Z&sks=b&skv=2024-11-04&sv=2024-11-04&st=2025-11-11T07%3A43%3A14Z&se=2025-11-11T08%3A43%3A14Z&sr=c&sp=r&sig=r0hKkTk6vsHw2nvHbzbqipA7ppG%2FyhmDfCG%2FU8itJ0U%3D:

11-09 00:05:24.831 11577 18616 I DOTNET  : System.Net.WebSockets.Client.Tests.CloseTest_SharedHandler_Loopback 9.7290199 ms
                 11-09 00:05:24.848 11577 18616 I DOTNET  : Failed tests:
                 11-09 00:05:24.849 11577 18616 I DOTNET  : 1) 	[FAIL] System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.SendAsync_Cancel_Success   Test name: System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.SendAsync_Cancel_Success(useSsl: False)   Test case: System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.SendAsync_Cancel_Success
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    Assembly:  [System.Net.WebSockets.Client.Tests, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    Exception messages: Actual Open when System.Threading.Tasks.TaskCanceledException: A task was canceled.
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Net.WebSockets.ManagedWebSocket.SendFrameFallbackAsync(MessageOpcode opcode, Boolean endOfMessage, Boolean disableCompression, ReadOnlyMemory`1 payloadBuffer, Task lockTask, CancellationToken cancellationToken)
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Net.WebSockets.Client.Tests.ClientWebSocketTestBase.TestCancellation(Func`2 action, Uri server)   Exception stack traces:    at System.Net.WebSockets.Client.Tests.ClientWebSocketTestBase.TestCancellation(Func`2 action, Uri server)
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Net.WebSockets.Client.Tests.CancelTestBase.RunClient_SendAsync_Cancel_Success(Uri server)
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Net.WebSockets.Client.Tests.LoopbackWebSocketServer.<>c__DisplayClass1_0.<<RunAsync>b__0>d.MoveNext()
                 11-09 00:05:24.849 11577 18616 I DOTNET  : --- End of stack trace from previous location ---
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task)
                 11-09 00:05:24.849 11577 18616 I DOTNET  : --- End of stack trace from previous location ---
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks)
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks, Int32 millisecondsTimeout)
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    at System.Net.WebSockets.Client.Tests.LoopbackWebSocketServer.HttpRunner.RunAsync(Func`2 clientFunc, Func`3 wsServerFunc, Options options, CancellationToken clientExitCt, CancellationToken globalCt)
                 11-09 00:05:24.849 11577 18616 I DOTNET  : --- End of stack trace from previous location ---
                 11-09 00:05:24.849 11577 18616 I DOTNET  :    Execution time: 0.1041653
                 11-09 00:05:24.856 11577 18616 D DOTNET  : Mapped System.Xml.ReaderWriter.dll -> /data/user/0/net.dot.System.Net.WebSockets.Client.Tests/files/System.Xml.ReaderWriter.dll
                 11-09 00:05:24.904 11577 18616 I DOTNET  : Xml file was written to the provided writer.
                 11-09 00:05:24.904 11577 18616 I DOTNET  : 
                 11-09 00:05:24.904 11577 18616 I DOTNET  : === TEST EXECUTION SUMMARY ===
                 11-09 00:05:24.904 11577 18616 I DOTNET  : Tests run: 863 Passed: 662 Inconclusive: 0 Failed: 1 Ignored: 178 Skipped: 22

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Tagging subscribers to this area: @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

[dotnet-policy-service]

Tagging subscribers to 'arch-android': @vitek-karas, @simonrozsival, @steveisok, @akoeplinger
See info in area-owners.md if you want to be subscribed.

[michaellinhq]

Hi, I reviewed 'Android WebSocket failure' and can start immediately. I can deliver a first usable version quickly and iterate based on your feedback. If this scope still matches your priority, I can proceed right away.

[michaellinhq]

Hi, I reviewed 'Android WebSocket failure' and can start immediately. I can deliver a first usable version quickly and iterate based on your feedback. If this scope still matches your priority, I can proceed right away.