SonarSource/sonar-kotlin
Nov 2024 – Jul 2025
7 Months active
Languages Used
JavaKotlinPropertiesHTMLYAMLMarkdown
Technical Skills
API MigrationBackend DevelopmentCode AnalysisCode QualityCompiler APICoroutines
Marharyta Nedzelska
PROFILE
Marharyta Nedzelska
Margarita Nedzelska contributed to the SonarSource/sonar-kotlin repository by engineering robust static analysis features and reliability improvements for Kotlin codebases. Over seven months, she migrated core analysis checks to the kotlin-analysis-api, modernizing the plugin’s architecture for better maintainability and performance. Margarita implemented hard-coded secrets detection, enhanced rule accuracy, and stabilized test suites to reduce false positives and CI flakiness. Her work involved deep integration with Java and Kotlin, leveraging compiler APIs, static code analysis, and CI/CD practices. Through targeted bug fixes, refactoring, and documentation updates, she improved code quality, security, and developer experience for Kotlin plugin users.
Overall Statistics
Feature vs Bugs
54%Features
Repository Contributions
40Total
Bugs
6
Commits
40
Features
7
Lines of code
2,224
Activity Months7
Your Network
135 people
Work History
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary: Delivered targeted improvements in sonar-kotlin by fixing a S6517 false positive related to functional interfaces with default arguments, with regression tests; standardized logging level from TRACE to DEBUG across the project to improve debug visibility, with code and test updates. These changes improve rule accuracy, observability, and overall maintainability, reducing triage time for Kotlin plugin users and supporting more reliable analysis results.
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary: Delivered targeted improvements in sonar-kotlin by fixing a S6517 false positive related to functional interfaces with default arguments, with regression tests; standardized logging level from TRACE to DEBUG across the project to improve debug visibility, with code and test updates. These changes improve rule accuracy, observability, and overall maintainability, reducing triage time for Kotlin plugin users and supporting more reliable analysis results.
July 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025: Delivered a security-focused Kotlin static analysis feature for SonarKotlin, establishing S6418 Hard-coded Secrets Detection. Implemented an abstract visitor foundation, a dedicated hard-coded secrets check, and accompanying test samples and documentation. This work enhances Kotlin code scanning for secrets with configurable keywords, entropy thresholds, and language scoring, enabling more accurate detection and reduced risk for client projects.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025: Delivered a security-focused Kotlin static analysis feature for SonarKotlin, establishing S6418 Hard-coded Secrets Detection. Implemented an abstract visitor foundation, a dedicated hard-coded secrets check, and accompanying test samples and documentation. This work enhances Kotlin code scanning for secrets with configurable keywords, entropy thresholds, and language scoring, enabling more accurate detection and reduced risk for client projects.
May 2025
4 Commits
May 1, 2025May 2025 Highlights for Sonar Kotlin: Delivered key reliability improvements to Kotlin code analysis, reducing false positives and improving correctness. Major bugs fixed include NPE in conditional analysis for missing then branches, FP fixes for generic interfaces in S6517 and non-Dispatcher arguments in S6311. Added new tests to cover edge cases (empty then branches, non-dispatcher arguments). Documentation cleanup to align README with current build setup. This work increases developer trust in the Kotlin analyzer, reduces noise in results, and strengthens the foundation for future rule enhancements.
4 Commits
May 1, 2025May 2025 Highlights for Sonar Kotlin: Delivered key reliability improvements to Kotlin code analysis, reducing false positives and improving correctness. Major bugs fixed include NPE in conditional analysis for missing then branches, FP fixes for generic interfaces in S6517 and non-Dispatcher arguments in S6311. Added new tests to cover edge cases (empty then branches, non-dispatcher arguments). Documentation cleanup to align README with current build setup. This work increases developer trust in the Kotlin analyzer, reduces noise in results, and strengthens the foundation for future rule enhancements.
May 2025
March 2025
4 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for SonarSource/sonar-kotlin: Delivered key fixes and modernization efforts to improve analysis accuracy, platform compatibility, and metadata quality, enabling faster triage, cleaner reports, and alignment with current security standards.
March 2025
4 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for SonarSource/sonar-kotlin: Delivered key fixes and modernization efforts to improve analysis accuracy, platform compatibility, and metadata quality, enabling faster triage, cleaner reports, and alignment with current security standards.
January 2025
1 Commits
Jan 1, 2025January 2025 monthly summary for Sonar Kotlin (SonarSource/sonar-kotlin): Focused on improving test reliability and aligning tests with core functionality. Implemented test suite stabilization by removing brittle metric assertions and refocusing integration tests on cognitive_complexity and issue reporting. This work reduces flakiness, speeds up CI feedback, and clarifies the signal on core quality metrics.
1 Commits
Jan 1, 2025January 2025 monthly summary for Sonar Kotlin (SonarSource/sonar-kotlin): Focused on improving test reliability and aligning tests with core functionality. Implemented test suite stabilization by removing brittle metric assertions and refocusing integration tests on cognitive_complexity and issue reporting. This work reduces flakiness, speeds up CI feedback, and clarifies the signal on core quality metrics.
January 2025
December 2024
20 Commits • 1 Features
Dec 1, 2024In December 2024, SonarSource/sonar-kotlin delivered a major API-driven refactor of the Kotlin analysis suite. 18 Kotlin analysis checks were migrated from internal implementations to the kotlin-analysis-api, significantly improving compatibility, performance, and maintainability. Representative migrations include InterfaceCouldBeFunctionalCheck, predictRuntimeValue family, WeakSSLContextCheck, AbstractRegexCheck, UnicodeAwareCharClassesCheck, and RegexComplexityCheck, among others. The release was updated to 2.22.0 and rules metadata refreshed to reflect the migration. This work establishes a centralized, API-based architecture for Kotlin analysis, enabling faster future enhancements with reduced duplication and lower maintenance costs.
December 2024
20 Commits • 1 Features
Dec 1, 2024In December 2024, SonarSource/sonar-kotlin delivered a major API-driven refactor of the Kotlin analysis suite. 18 Kotlin analysis checks were migrated from internal implementations to the kotlin-analysis-api, significantly improving compatibility, performance, and maintainability. Representative migrations include InterfaceCouldBeFunctionalCheck, predictRuntimeValue family, WeakSSLContextCheck, AbstractRegexCheck, UnicodeAwareCharClassesCheck, and RegexComplexityCheck, among others. The release was updated to 2.22.0 and rules metadata refreshed to reflect the migration. This work establishes a centralized, API-based architecture for Kotlin analysis, enabling faster future enhancements with reduced duplication and lower maintenance costs.
November 2024
8 Commits • 3 Features
Nov 1, 2024November 2024 highlights: Delivered NOSONAR support for Kotlin in SonarLint, including a new MetricVisitor and tests ensuring NOSONAR-tagged code is excluded from metrics (commit 7833c4ce529f4f0dfbb2168771f92fd85232f7ae). Migrated Kotlin analysis checks to kotlin-analysis-api, replacing BindingContext with Kotlin Analysis Session for VarShouldBeValCheck, PropertyGetterAndSetterUsageCheck, DeprecatedCodeCheck, and CoroutineScopeFunSuspendingCheck (commits 48d52ad8301f332fdb6dc07da0bb0b23e63ea44e; 7fef2f54ea12e01546c9c845430b01ee6370fb6c; cd134636b150352bf2abc0b6169aa06abedc8192; ce78158e222bf19b1a33c2e3a03e289c75ac986b). Internal Kotlin improvements: classpath filtering to reduce warnings and refinement of the S6524 rule to better detect non-immutable collections (commits 4b2257658fe943a908f74771ce7236da3e2756e0; d51f069556db0b16635814d34cd5c4fde73b5433). Bug fix: logging level for unsupported code highlighting lowered from WARN to INFO with updated tests (commit 9cab62cdd5aed0fc9c4b86bf983b230118f84fc5).
8 Commits • 3 Features
Nov 1, 2024November 2024 highlights: Delivered NOSONAR support for Kotlin in SonarLint, including a new MetricVisitor and tests ensuring NOSONAR-tagged code is excluded from metrics (commit 7833c4ce529f4f0dfbb2168771f92fd85232f7ae). Migrated Kotlin analysis checks to kotlin-analysis-api, replacing BindingContext with Kotlin Analysis Session for VarShouldBeValCheck, PropertyGetterAndSetterUsageCheck, DeprecatedCodeCheck, and CoroutineScopeFunSuspendingCheck (commits 48d52ad8301f332fdb6dc07da0bb0b23e63ea44e; 7fef2f54ea12e01546c9c845430b01ee6370fb6c; cd134636b150352bf2abc0b6169aa06abedc8192; ce78158e222bf19b1a33c2e3a03e289c75ac986b). Internal Kotlin improvements: classpath filtering to reduce warnings and refinement of the S6524 rule to better detect non-immutable collections (commits 4b2257658fe943a908f74771ce7236da3e2756e0; d51f069556db0b16635814d34cd5c4fde73b5433). Bug fix: logging level for unsupported code highlighting lowered from WARN to INFO with updated tests (commit 9cab62cdd5aed0fc9c4b86bf983b230118f84fc5).
November 2024
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Quality Metrics
Correctness97.2%
Maintainability96.8%
Architecture95.8%
Performance87.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
HTMLJavaKotlinMarkdownPropertiesYAML
Technical Skills
API IntegrationAPI MigrationBackend DevelopmentBuild ManagementCI/CDCode AnalysisCode MigrationCode QualityCode RefactoringCompiler APICompiler InternalsCoroutinesDocumentationIntegration TestingJava
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