System.Net.Http test GetAsync_AllowedSSLVersion_Succeeds failing on android with System.PlatformNotSupportedException : The requested SslProtocols (Tls/Tls11) are not supported on this platform

[elinor-fung]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1129141
Build error leg or test failing: System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_SslProtocols_Test.GetAsync_AllowedSSLVersion_Succeeds
Pull request: #118973

08-21 16:06:09.994 22401 27367 I DOTNET  : 	[FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_SslProtocols_Test.GetAsync_AllowedSSLVersion_Succeeds(acceptedProtocol: Tls, requestOnlyThisProtocol: True)
08-21 16:06:09.994 22401 27367 I DOTNET  : System.AggregateException : One or more errors occurred. (Received an unexpected EOF or 0 bytes from the transport stream.) (The SSL connection could not be established, see inner exception.)
08-21 16:06:09.994 22401 27367 I DOTNET  : ---- System.IO.IOException : Received an unexpected EOF or 0 bytes from the transport stream.
08-21 16:06:09.994 22401 27367 I DOTNET  : ---- System.Net.Http.HttpRequestException : The SSL connection could not be established, see inner exception.
08-21 16:06:09.994 22401 27367 I DOTNET  : -------- System.Security.Authentication.AuthenticationException : Authentication failed, see inner exception.
08-21 16:06:09.994 22401 27367 I DOTNET  : ------------ System.PlatformNotSupportedException : The requested SslProtocols (Tls) are not supported on this platform.
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks, Int32 millisecondsTimeout)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.Functional.Tests.HttpClientHandler_SslProtocols_Test.<>c__DisplayClass5_1.<<GetAsync_AllowedSSLVersion_Succeeds>b__2>d.MoveNext()
08-21 16:06:09.994 22401 27367 I DOTNET  : --- End of stack trace from previous location ---
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Test.Common.LoopbackServer.CreateServerAsync(Func`2 funcAsync, Options options)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.Functional.Tests.HttpClientHandler_SslProtocols_Test.GetAsync_AllowedSSLVersion_Succeeds(SslProtocols acceptedProtocol, Boolean requestOnlyThisProtocol)
08-21 16:06:09.994 22401 27367 I DOTNET  : --- End of stack trace from previous location ---
08-21 16:06:09.994 22401 27367 I DOTNET  : ----- Inner Stack Trace #1 (System.IO.IOException) -----
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Security.SslStream.ReceiveHandshakeFrameAsync[TIOAdapter](CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](Boolean receiveFirst, Byte[] reAuthenticationData, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Test.Common.LoopbackServer.Connection.CreateAsync(SocketWrapper socket, Stream stream, Options httpOptions)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Test.Common.LoopbackServer.EstablishConnectionAsync()
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Test.Common.LoopbackServer.AcceptConnectionAsync(Func`2 funcAsync)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Test.Common.LoopbackServer.AcceptConnectionSendResponseAndCloseAsync(HttpStatusCode statusCode, String additionalHeaders, String content)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task)
08-21 16:06:09.994 22401 27367 I DOTNET  : ----- Inner Stack Trace #2 (System.Net.Http.HttpRequestException) -----
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.HttpConnectionPool.InjectNewHttp11ConnectionAsync(QueueItem queueItem)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.SocketsHttpHandler.<SendAsync>g__CreateHandlerAndSendAsync|115_0(HttpRequestMessage request, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task)
08-21 16:06:09.994 22401 27367 I DOTNET  : ----- Inner Stack Trace -----
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](Boolean receiveFirst, Byte[] reAuthenticationData, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)
08-21 16:06:09.994 22401 27367 I DOTNET  : ----- Inner Stack Trace -----
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.SafeDeleteSslContext.InitializeSslContext(SafeSslHandle handle, SslAuthenticationOptions authOptions)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.SafeDeleteSslContext..ctor(SslAuthenticationOptions authOptions)
08-21 16:06:09.994 22401 27367 I DOTNET  :    at System.Net.Security.SslStreamPal.HandshakeInternal(SafeFreeCredentials credential, SafeDeleteSslContext& context, ReadOnlySpan`1 inputBuffer, Int32& consumed, SslAuthenticationOptions sslAuthenticationOptions)

Error Message

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

{
  "ErrorMessage": ["[FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_SslProtocols_Test.GetAsync_AllowedSSLVersion_Succeeds", "System.PlatformNotSupportedException : The requested SslProtocols"],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1129141
Error message validated: [[FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandler_SslProtocols_Test.GetAsync_AllowedSSLVersion_Succeeds System.PlatformNotSupportedException : The requested SslProtocols]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 8/22/2025 5:53:33 PM UTC

Report

Build	Definition	Test	Pull Request
1131890	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119086
1131901	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119087
1131842	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1131505	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1131491	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1131302	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118990
1131269	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118830
1131161	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#106880
1131120	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118990
1130981	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118987
1130716	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119041
1130592	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119028
1130513	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119037
1130485	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119034
1130451	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119032
1130366	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119028
1130315	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119031
1130191	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118849
1130144	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118944
1130007	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1129958	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118935
1129916	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#119007
1129141	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#118973

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
5	23	23

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• [Android] SocketsHttpHandler_HttpClientHandler_SslProtocols_Test failures #118350

[simonrozsival]

It appears the Helix queue windows.11.amd64.android.open has machine DNCENGWIN-138 (and possibly others) with an Android API 36 emulator. The TLS 1.0 and 1.1 protocols aren't supported on this API level anymore:

Android 15 restricts the usage of TLS versions 1.0 and 1.1. These versions had previously been deprecated in Android, but are now disallowed for apps targeting Android 15.
-- Behavior changes: Apps targeting Android 15 or higher (developer.android.com)

Our tests assume they're running on Android API 29 where we expect TLS 1.0 and 1.1 to be supported.

Console log: 'System.Net.Http.Functional.Tests' from job dfbab106-1a54-48d0-bec0-a73a1a2cd8b3 workitem 45462ace-6dd7-4f40-8590-8a972f40c457 (windows.11.amd64.android.open) executed on machine DNCENGWIN-138 running Windows-10-10.0.22621-SP0
...
[10.0.0-prerelease.25405.1+4c17e23fcb7575baa9de575e5a96258096cbaea1] XHarness command issued: android test --app System.Net.Http.Functional.Tests.apk --output-directory D:\h\w\BB8C0A14\w\A87F08F4\uploads --timeout 00:30:00 --package-name net.dot.System.Net.Http.Functional.Tests -v --instrumentation net.dot.MonoRunner
[15:48:50] dbug: ADBRunner using ADB.exe supplied from D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\tools\net8.0\any\..\..\..\runtimes\any\native\adb\windows\adb.exe
[15:48:50] dbug: Full resolved path:'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe'
[15:48:50] info: Will attempt to find device supporting architectures: 'arm64-v8a'
[15:48:50] dbug: Executing command: 'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe start-server'
[15:48:52] dbug: 
[15:48:52] info: Finding attached devices/emulators...
[15:48:52] dbug: Executing command: 'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe devices -l'
[15:48:52] dbug: Found 1 possible devices
[15:48:52] dbug: Evaluating output line for device serial: 2A141JEGR19700         device product:bluejay model:Pixel_6a device:bluejay transport_id:1
[15:48:52] dbug: Executing command: 'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe -s 2A141JEGR19700 shell getprop ro.product.cpu.abilist'
[15:48:52] dbug: Found 1 possible devices. Using '2A141JEGR19700'
[15:48:52] info: Active Android device set to serial '2A141JEGR19700'
[15:48:52] dbug: Executing command: 'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe -s 2A141JEGR19700 -s 2A141JEGR19700 shell getprop ro.product.cpu.abi'
[15:48:52] dbug: Executing command: 'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe -s 2A141JEGR19700 -s 2A141JEGR19700 shell getprop ro.build.version.sdk'
[15:48:52] info: Waiting for device to be available (max 5 minutes)
[15:48:52] dbug: Executing command: 'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe -s 2A141JEGR19700 wait-for-device'
[15:48:52] dbug: Executing command: 'D:\h\w\BB8C0A14\p\microsoft.dotnet.xharness.cli\10.0.0-prerelease.25405.1\runtimes\any\native\adb\windows\adb.exe -s 2A141JEGR19700 -s 2A141JEGR19700 shell getprop sys.boot_completed'
[15:48:52] dbug: sys.boot_completed = '1'
[15:48:52] dbug: Waited 0 seconds for device boot completion
[15:48:52] dbug: Working with 2A141JEGR19700 (API 36)
...

[akoeplinger]

windows.11.amd64.android.open is a device queue so this would be a physical device