[ci-scan] Test failure: JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType

[jkoritzinsky]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1581524&view=logs&jobId=bc936583-455b-59a6-ba6a-b6595d929238
Build error leg or test failing: coreclr Pri1 Runtime Tests Run windows x64 checked - global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
Pull request: #133188

KBE authoring guidance (ci-failure-scan)

• Error Details is for readers. Paste the full exception, stack trace, or build error excerpt so the failure is understandable without opening the raw log.
• Build Analysis parses only the single JSON block under Error Message.
• ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
• Set BuildRetry to true only for a clear infrastructure retry case. ExcludeConsoleLog disables Helix console-log scanning.

Error Details

19:45:42.693 Running test: global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
Xunit.Sdk.ThrowsException: Assert.Throws() Failure: No exception was thrown
Expected: typeof(System.NullReferenceException)
 at Xunit.Assert.ThrowsImpl(Type exceptionType, Exception exception, Func`2 inspector) in /_/src/arcade/src/Microsoft.DotNet.XUnitAssert/src/ExceptionAsserts.cs:line 506
 at JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
 at Program.<<Main>$>g__TestExecutor41|0_42(StreamWriter tempLogSw, StreamWriter statsCsvSw, OutOfProcessPlanWriter, <>c__DisplayClass0_0& A_3)
19:45:42.989 Failed test: global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()

The failure reproduces in the original, unroundtripped assembly when DOTNET_TieredCompilation=0; ILASM is not causal. The optimized JIT expands nullable boxing to a potentially null exact-typed local, then VN-based assertion propagation folds Object.GetType() to the underlying runtime type constant without retaining the required null check.

Error Message

{
 "ErrorMessage": [
 "global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()",
 "Xunit.Sdk.ThrowsException: Assert.Throws() Failure: No exception was thrown"
 ],
 "ErrorPattern": "",
 "BuildRetry": false,
 "ExcludeConsoleLog": false
}

Agentic workflow metadata (ci-failure-scan)

Workflow artifact: ci-failure-scan
Artifact kind: kbe-verification
Verified match count: 1 hits in failure.log

Note

This issue was created by GitHub Copilot.

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1581524
Error message validated: [global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType() Xunit.Sdk.ThrowsException: Assert.Throws() Failure: No exception was thrown]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 9/3/2026 9:59:54 PM UTC

Report

Build	Repository	Test	Pull Request
1582616	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133227
1584187	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133222
1584197	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1584176	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133261
1584153	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133285
1584085	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#130050
1584080	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133284
1584054	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1584002	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132448
1584047	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133281
1583949	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133218
1583964	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133265
1583976	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132865
1583971	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132572
1583958	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133146
1583948	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133266
1583944	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133274
1583907	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#128626
1583904	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133276
1583901	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133275
1583889	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133272
1583864	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#130805
1583852	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#131826
1583848	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133261
1583835	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133269
1583823	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133268
1583701	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1583722	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133262
1583671	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133260
1583645	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133258
1583627	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1583554	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#131826
1583514	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133252
1583537	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133093
1583502	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133215
1583511	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133253
1583457	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133213
1583460	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133248
1583441	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1583332	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133115
1583242	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133239
1583220	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#131995
1583239	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133000
1583200	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132584
1583172	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132419
1583092	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133000
1583009	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132999
1582967	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133235
1582977	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133228
1582700	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1582842	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133000
1582779	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133230
1582789	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132999
1582750	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133228
1582722	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#131877
1582704	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1582644	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133077
1582641	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133226
1582625	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1582607	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132819
1582566	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132419
1582547	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133000
1582526	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133079
1582265	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133192
1582493	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133215
1582427	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133222
1582384	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133218
1582356	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133133
1582368	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132534
1582310	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133173
1582202	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133146
1582169	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1582365	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1582146	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133210
1582139	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132763
1582130	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133213
1582030	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132955
1582063	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133211
1582008	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132999
1581543	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132346
1581972	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133079
1581990	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133138
1581946	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#130050
1581938	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133206
1581874	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132572
1581856	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132965
1581869	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132419
1581844	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133202
1581820	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132042
1581811	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132861
1581766	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#130805
1581747	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1581677	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133115
1581623	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#131877
1581592	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133196
1581564	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133000
1581582	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133136
1581595	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133197
1581535	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133192
1581521	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133188
Displaying 100 of 110 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
45	110	110

[dotnet-policy-service]

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
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[JulieLeeMSFT]

@jakobbotsch, analysis points to assertion prop. PTAL if we need to fix in .NET 11.