[Android] System.Net.Mail.Tests SmtpClient tests fail with SSL handshake errors in BoringSSL on x64/x86 emulators

[matouskozak]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1043927

Build error leg or test failing: System.Net.Mail.Functional.Tests

Affected CI jobs: android_x64_release_allsubsets_mono, android_x86_release_allsubsets_mono

Commit range: N/A (No commit range is available as the failure's first occurrence could not be determined)

Extracted Error Log

05-16 22:08:21.786  5647  5668 W System.err: javax.net.ssl.SSLHandshakeException: SSL handshake aborted: ssl=0xc5ec2738: Failure in SSL library, usually a protocol error
05-16 22:08:21.786  5647  5668 W System.err: error:10000044:SSL routines:OPENSSL_internal:internal error (external/boringssl/src/ssl/s3_both.cc:516 0xd9df0543:0x00000000)

Error Message

{
  "ErrorMessage": ["javax.net.ssl.SSLHandshakeException: SSL handshake aborted: ssl=", "Failure in SSL library, usually a protocol error"],
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1043927
Error message validated: [javax.net.ssl.SSLHandshakeException: SSL handshake aborted: ssl= Failure in SSL library, usually a protocol error]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 5/18/2025 8:18:59 AM UTC

Report

Build	Definition	Test	Pull Request
1097916	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#117763
1097633	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1094947	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#117653
1097504	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#117710
1096980	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1096298	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#117710
1096215	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1095854	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#117693
1095577	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1094804	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1094240	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1093567	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1093249	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1093056	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1092883	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException
1092728	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException
1092503	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException
1091981	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1091545	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1091180	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#117507
1090889	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1090290	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1089548	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1088858	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1088075	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1087569	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1086936	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1086696	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1086565	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1086435	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1086311	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1086189	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1085900	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1085479	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1084860	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1071537	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution	#116540

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
2	17	36

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[kotlarmilos]

@matouskozak I think these are device errors and are not related to the actual tests.

[matouskozak]

@matouskozak I think these are device errors and are not related to the actual tests.

You're right, the error message seems to be red hearing. However, there are some errors happening on emulators and devices with this format:

07-17 16:11:30.634  8649 17072 I DOTNET  : 9) 	[FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException   Test name: System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException(dangerousChar: 0x009f, headerType: Cookie)   Test case: System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_HttpClientHandlerTest_Http2.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException
07-17 16:11:30.634  8649 17072 I DOTNET  :    Assembly:  [System.Net.Http.Functional.Tests, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
07-17 16:11:30.634  8649 17072 I DOTNET  :    Exception messages: Assert.Contains() Failure: Sub-string not found
07-17 16:11:30.634  8649 17072 I DOTNET  : String:    "An HTTP/2 connection could not be establi"···
07-17 16:11:30.634  8649 17072 I DOTNET  : Not found: "ASCII"   Exception stack traces:    at System.Net.Http.Functional.Tests.HttpClientHandlerTest.<>c__DisplayClass54_0.<<SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException>b__0>d.MoveNext()
07-17 16:11:30.634  8649 17072 I DOTNET  : --- End of stack trace from previous location ---
07-17 16:11:30.634  8649 17072 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task)
07-17 16:11:30.634  8649 17072 I DOTNET  : --- End of stack trace from previous location ---
07-17 16:11:30.634  8649 17072 I DOTNET  :    at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks)
07-17 16:11:30.634  8649 17072 I DOTNET  :    at System.Net.Test.Common.LoopbackServerFactory.<>c__DisplayClass6_0.<<CreateClientAndServerAsync>b__0>d.MoveNext()
07-17 16:11:30.634  8649 17072 I DOTNET  : --- End of stack trace from previous location ---
07-17 16:11:30.634  8649 17072 I DOTNET  :    at System.Net.Test.Common.Http2LoopbackServerFactory.CreateServerAsync(Func`3 funcAsync, Int32 millisecondsTimeout, GenericLoopbackOptions options)
07-17 16:11:30.634  8649 17072 I DOTNET  :    at System.Net.Http.Functional.Tests.HttpClientHandlerTest.SendAsync_RequestWithDangerousControlHeaderValue_ThrowsHttpRequestException(Char dangerousChar, HeaderType headerType)
07-17 16:11:30.634  8649 17072 I DOTNET  : --- End of stack trace from previous location ---

[kotlarmilos]

That error was tracked in #117198.