[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
1582967	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133235
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()
1582616	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133227
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
1581524	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133188
1581449	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#131507
1581850	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1581414	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133111
1581452	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#131507
1581443	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()
1581437	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132713
1581296	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132584
1581347	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#132646
1581241	dotnet/runtime	global::JitTest_Directed_nullabletypes_gettype.P.BoxedNullableGetType()	#133179

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
63	63	63

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