System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly fails on extra-platforms

[ManickaP]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=165856
Build error leg or test failing: System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly
Pull request: #81481

Error Message

[FAIL] System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(ignoreCase: False)
System.NullReferenceException : Object reference not set to an instance of an object.
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.<GenerateCollidingStrings>g__GetHashCodeFunc|4_0(ConcurrentDictionary`2 cd) + 0x30
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.GenerateCollidingStrings(Int32 count) + 0x6c
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(Boolean ignoreCase) + 0x1f
   at System.Collections.Concurrent.Tests!<BaseAddress>+0x909a6d
   at System.Reflection.DynamicInvokeInfo.Invoke(Object, IntPtr, Object[], BinderBundle, Boolean) + 0x167
[FAIL] System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(ignoreCase: True)
System.NullReferenceException : Object reference not set to an instance of an object.
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.<GenerateCollidingStrings>g__GetHashCodeFunc|4_0(ConcurrentDictionary`2 cd) + 0x30
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.GenerateCollidingStrings(Int32 count) + 0x6c
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(Boolean ignoreCase) + 0x1f
   at System.Collections.Concurrent.Tests!<BaseAddress>+0x909a6d
   at System.Reflection.DynamicInvokeInfo.Invoke(Object, IntPtr, Object[], BinderBundle, Boolean) + 0x167

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Issue Details

---

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=165856
Build error leg or test failing: System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly
Pull request: #81481

Error Message

[FAIL] System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(ignoreCase: False)
System.NullReferenceException : Object reference not set to an instance of an object.
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.<GenerateCollidingStrings>g__GetHashCodeFunc|4_0(ConcurrentDictionary`2 cd) + 0x30
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.GenerateCollidingStrings(Int32 count) + 0x6c
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(Boolean ignoreCase) + 0x1f
   at System.Collections.Concurrent.Tests!<BaseAddress>+0x909a6d
   at System.Reflection.DynamicInvokeInfo.Invoke(Object, IntPtr, Object[], BinderBundle, Boolean) + 0x167
[FAIL] System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(ignoreCase: True)
System.NullReferenceException : Object reference not set to an instance of an object.
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.<GenerateCollidingStrings>g__GetHashCodeFunc|4_0(ConcurrentDictionary`2 cd) + 0x30
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.GenerateCollidingStrings(Int32 count) + 0x6c
   at System.Collections.Concurrent.Tests.ConcurrentDictionary_Generic_Tests_string_string.NonRandomizedToRandomizedUpgrade_FunctionsCorrectly(Boolean ignoreCase) + 0x1f
   at System.Collections.Concurrent.Tests!<BaseAddress>+0x909a6d
   at System.Reflection.DynamicInvokeInfo.Invoke(Object, IntPtr, Object[], BinderBundle, Boolean) + 0x167

Author:	ManickaP
Assignees:	-
Labels:	area-System.Collections
Milestone:	-

[eiriktsarpalis]

Potentially related to #81557? @stephentoub

[stephentoub]

Yes, it's a brand new test added in that PR and it uses reflection to access some privates.