Test Failure: System.Text.Tests.TranscodingStreamTests.CanRead_DelegatesToInnerStream

[JulieLeeMSFT]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1521506
Build error leg or test failing: System.Text.Tests.TranscodingStreamTests.CanRead_DelegatesToInnerStream

  Starting:    System.Text.Encoding.Tests (parallel test collections = on [8 threads], stop on fail = off)
    System.Text.Tests.TranscodingStreamTests.CanRead_DelegatesToInnerStream(expectedCanRead: True) [FAIL]
      System.NullReferenceException : Object reference not set to an instance of an object.

Error Message

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

{
  "ErrorMessage": "System.Text.Tests.TranscodingStreamTests.CanRead_DelegatesToInnerStream(expectedCanRead: True) [FAIL]",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1521506
Error message validated: [System.Text.Tests.TranscodingStreamTests.CanRead_DelegatesToInnerStream(expectedCanRead: True) [FAIL]]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 7/23/2026 2:50:15 PM UTC

Report

Build	Repository	Test	Pull Request
1521506	dotnet/runtime	System.Text.Tests.TranscodingStreamTests.CanRead_DelegatesToInnerStream

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	1	1

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