[Infra] .NET 11 preparation

[martincostello]

Changes

Cherry-pick changes from #3867 to fix new warnings and reduce the diff.

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• Unit tests added/updated
• Appropriate CHANGELOG.md files updated for non-trivial changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.39%. Comparing base (a58e551) to head (b6cc79c).
⚠️ Report is 17 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4849   +/-   ##
=======================================
  Coverage   77.39%   77.39%           
=======================================
  Files         468      468           
  Lines       19814    19810    -4     
=======================================
- Hits        15335    15332    -3     
+ Misses       4479     4478    -1     

Files with missing lines	Coverage Δ
...ter.Geneva/Internal/Transports/EtwDataTransport.cs	89.47% <ø> (+3.11%)	⬆️
...rumentation.ConfluentKafka/InstrumentedProducer.cs	66.12% <ø> (ø)
src/OpenTelemetry.Resources.Host/HostDetector.cs	75.59% <ø> (-0.20%)	⬇️

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[opentelemetry-pr-dashboard]

Pull request dashboard status

Merged · refreshed 2026-07-28 19:12 UTC

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[Copilot]

Pull request overview

This PR cherry-picks a small set of changes (from #3867) intended to reduce .NET 11-related build noise by addressing warnings and making minor refactors across a few components and examples.

Changes:

• Simplify ETW transport code and related test assertions/initialization to address analyzer warnings.
• Make macOS host detector process timeout value explicit (reducing “magic number”/warning churn).
• Adjust conditional compilation around Type.FullName nullability to avoid new warnings on newer TFMs.
• Update the ASP.NET example Web.config binding redirects.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/OpenTelemetry.Exporter.Geneva.Tests/Internal/Transports/EtwDataTransportTests.cs	Updates test assertions and uses collection expressions for initialization.
src/OpenTelemetry.Resources.Host/HostDetector.cs	Introduces a named timeout value for WaitForExit in macOS machine-id extraction.
src/OpenTelemetry.Instrumentation.ConfluentKafka/InstrumentedProducer.cs	Uses conditional compilation to handle nullability warnings around Type.FullName.
src/OpenTelemetry.Exporter.Geneva/Internal/Transports/EtwDataTransport.cs	Converts simple methods to expression-bodied members and suppresses an additional analyzer warning for an intentionally-unused parameter.
examples/AspNet/Web.config	Adds an additional bindingRedirect entry (currently duplicated).

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