dotnet/runtime
Jan 2025 – Nov 2025
2 Months active
Languages Used
C#
Technical Skills
API DesignCore LibrariesUnit TestingAPI developmentC# programmingbackend development
Eriawan Kusumawardhono
PROFILE
Eriawan Kusumawardhono
Contributed to the dotnet/runtime repository by enhancing core library APIs and improving platform compatibility. Developed nullable Encoding support for StreamReader constructors, aligning with nullable reference type guidelines in C# and updating unit tests to ensure robust null handling. Addressed cross-platform reliability in backend development by annotating HttpClient.Send with UnsupportedOSPlatform attributes for Android and iOS, resolving a long-standing compatibility issue and increasing test coverage. Applied skills in API design, API development, and C# programming to deliver targeted improvements that strengthened API correctness, null-safety, and developer clarity, while also participating in code reviews to support maintainability and collaborative development practices.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
2Total
Bugs
1
Commits
2
Features
1
Lines of code
115
Activity Months2
Work History
November 2025
1 Commits
Nov 1, 2025November 2025: Focused on enhancing cross-platform reliability for HttpClient.Send by introducing platform-availability annotations for Android and iOS, addressing a long-standing platform-compatibility risk. Implemented tests to consistently apply UnsupportedOSPlatform attributes, resolved issue #104716, and improved developer clarity and test resilience across the dotnet/runtime repository.
1 Commits
Nov 1, 2025November 2025: Focused on enhancing cross-platform reliability for HttpClient.Send by introducing platform-availability annotations for Android and iOS, addressing a long-standing platform-compatibility risk. Implemented tests to consistently apply UnsupportedOSPlatform attributes, resolved issue #104716, and improved developer clarity and test resilience across the dotnet/runtime repository.
November 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025: Delivered Nullable Encoding support in StreamReader constructors for dotnet/runtime, enabling a nullable Encoding parameter and updating tests to verify null encoding handling. Relevant commit: 5abf58221b725acc12df0b0c4e225e4d3c3c3b45. No major bugs fixed this month. Overall, this improves null-safety, API correctness, and test coverage for encoding-related StreamReader construction.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025: Delivered Nullable Encoding support in StreamReader constructors for dotnet/runtime, enabling a nullable Encoding parameter and updating tests to verify null encoding handling. Relevant commit: 5abf58221b725acc12df0b0c4e225e4d3c3c3b45. No major bugs fixed this month. Overall, this improves null-safety, API correctness, and test coverage for encoding-related StreamReader construction.
Activity
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Quality Metrics
Correctness100.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage50.0%
Skills & Technologies
Programming Languages
C#
Technical Skills
API DesignAPI developmentC# programmingCore LibrariesUnit Testingbackend development
Repositories Contributed To
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