soot-oss/SootUp
Mar 2025 – Oct 2025
7 Months active
Languages Used
Git ConfigurationJavaJavaScriptXMLYAMLMarkdown
Technical Skills
Annotation ProcessingBuild AutomationBuild ConfigurationBuild ManagementBuild System ConfigurationBuild Tools
Jonas Klauke
PROFILE
Jonas Klauke
Jonas Klauke modernized and enhanced the SootUp repository over seven months, focusing on static analysis, call graph algorithms, and build infrastructure. He upgraded the Java baseline to versions 17 and 21, refactored core APIs, and improved CI/CD workflows using Maven and GitHub Actions. His work included optimizing bytecode analysis, expanding test coverage with JUnit 5, and streamlining code formatting and dependency management. Jonas also introduced security and contribution documentation, improving onboarding and governance. By addressing performance, reliability, and maintainability, he delivered a robust, future-ready platform, demonstrating depth in Java development, build automation, and static code analysis.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
142Total
Bugs
19
Commits
142
Features
46
Lines of code
17,134
Activity Months7
Your Network
25 people
Work History
October 2025
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — soot-oss/SootUp: Delivered comprehensive CONTRIBUTING guidelines and workflow documentation to standardize contributions and improve onboarding. No major bugs fixed this month; focus was on governance and process improvements. Key impact: faster onboarding, more consistent code quality, and clearer contribution expectations. Technologies/skills demonstrated: Markdown/documentation best practices, repository governance, branching strategies, and code-review workflows.
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — soot-oss/SootUp: Delivered comprehensive CONTRIBUTING guidelines and workflow documentation to standardize contributions and improve onboarding. No major bugs fixed this month; focus was on governance and process improvements. Key impact: faster onboarding, more consistent code quality, and clearer contribution expectations. Technologies/skills demonstrated: Markdown/documentation best practices, repository governance, branching strategies, and code-review workflows.
October 2025
September 2025
16 Commits • 3 Features
Sep 1, 20252025-09 monthly summary for soot-oss/SootUp: Delivered a set of performance and reliability improvements to the call graph analysis, modernized the test suite and resource management across modules, and added security governance documentation. These changes boost analysis speed and stability, reduce maintenance overhead, and improve governance and onboarding. Key technical wins include caching of java.lang.Thread type, stream-based instantiated class collection, safer null/method-body checks, enhanced test coverage for superclass calls, comprehensive test utilities refactor, expanded test resources, and the SECURITY.md documenting security policy and process.
September 2025
16 Commits • 3 Features
Sep 1, 20252025-09 monthly summary for soot-oss/SootUp: Delivered a set of performance and reliability improvements to the call graph analysis, modernized the test suite and resource management across modules, and added security governance documentation. These changes boost analysis speed and stability, reduce maintenance overhead, and improve governance and onboarding. Key technical wins include caching of java.lang.Thread type, stream-based instantiated class collection, safer null/method-body checks, enhanced test coverage for superclass calls, comprehensive test utilities refactor, expanded test resources, and the SECURITY.md documenting security policy and process.
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025: Targeted fixes and quality improvements for SootUp. Reverted JavaView class resolution inefficiency to restore streaming/processing flow. Hardened OverridingJavaClassSource by removing redundant asserts to support nullable delegates. Tightened code quality and API consistency with formatting improvements and API rename: getDefaultValues -> getAnnotationDefaultValues across the codebase. These changes improve runtime stability, robustness, and maintainability, setting a solid foundation for upcoming features.
4 Commits • 1 Features
Jul 1, 2025July 2025: Targeted fixes and quality improvements for SootUp. Reverted JavaView class resolution inefficiency to restore streaming/processing flow. Hardened OverridingJavaClassSource by removing redundant asserts to support nullable delegates. Tightened code quality and API consistency with formatting improvements and API rename: getDefaultValues -> getAnnotationDefaultValues across the codebase. These changes improve runtime stability, robustness, and maintainability, setting a solid foundation for upcoming features.
July 2025
June 2025
25 Commits • 7 Features
Jun 1, 2025June 2025 monthly summary for soot-oss/SootUp focusing on API cleanups, performance improvements, expanded test coverage, and release readiness. Delivered concrete code refactors, reliability improvements, and a platform-wide preparation for a 2.0.0 release with measurable business value in startup/class-discovery performance, maintainability, and quality assurance.
June 2025
25 Commits • 7 Features
Jun 1, 2025June 2025 monthly summary for soot-oss/SootUp focusing on API cleanups, performance improvements, expanded test coverage, and release readiness. Delivered concrete code refactors, reliability improvements, and a platform-wide preparation for a 2.0.0 release with measurable business value in startup/class-discovery performance, maintainability, and quality assurance.
May 2025
28 Commits • 8 Features
May 1, 2025May 2025 (soot-oss/SootUp) delivered substantial improvements to the Call Graph subsystem and export capabilities, boosting analysis accuracy, performance, and developer productivity. Key features delivered include API and data-model enhancements, robust export improvements, and targeted algorithm refinements, complemented by stability and quality actions across the batch. These work items collectively raise the value of the static analysis platform for customers and internal teams.
28 Commits • 8 Features
May 1, 2025May 2025 (soot-oss/SootUp) delivered substantial improvements to the Call Graph subsystem and export capabilities, boosting analysis accuracy, performance, and developer productivity. Key features delivered include API and data-model enhancements, robust export improvements, and targeted algorithm refinements, complemented by stability and quality actions across the batch. These work items collectively raise the value of the static analysis platform for customers and internal teams.
May 2025
April 2025
5 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for soot-oss/SootUp: Delivered consolidated Codecov configuration and CI coverage reporting improvements for the Maven-based multi-module project. Key changes include ignoring irrelevant submodules (e.g., qilin and example) in the coverage report, adding the Codecov token to the CI workflow, introducing per-module coverage rules, and fixing Codecov YAML and component descriptions. These changes reduce noise, improve coverage visibility, and provide more actionable metrics for the engineering team. 5 commits were made across these changes.
April 2025
5 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for soot-oss/SootUp: Delivered consolidated Codecov configuration and CI coverage reporting improvements for the Maven-based multi-module project. Key changes include ignoring irrelevant submodules (e.g., qilin and example) in the coverage report, adding the Codecov token to the CI workflow, introducing per-module coverage rules, and fixing Codecov YAML and component descriptions. These changes reduce noise, improve coverage visibility, and provide more actionable metrics for the engineering team. 5 commits were made across these changes.
March 2025
63 Commits • 25 Features
Mar 1, 2025Month 2025-03 – SootUp (soot-oss/SootUp) modernization and reliability enhancements across test infrastructure, Java baseline, and CI. The work focused on delivering features that strengthen long-term maintainability and business value, while fixing critical reliability gaps. Key features delivered include: 1) Test binaries and test case adaptation for the updated test setup, expanding credible test coverage; 2) Bytecode Frontend-based test infrastructure modernization, removing obsolete frontend references and reintroducing WitherTest to reflect the updated pipeline; 3) Java 17 baseline upgrade with Java 21 workflow support, including pom/profile updates and CI workflow alignment for Java 17/21 test runs; 4) Test resources restructuring and improved call-graph/test resource layout with refined ignore policy; 5) Code quality improvements and test robustness, including improved handling of optionals and safety checks. Major bugs fixed include: 1) Removed Java 8 dependency constraint and aligned with newer JDKs; 2) Unchecked Optional handling bug fixes and broader Optional/Nullable safety improvements; 3) Folder name extraction bug fix; 4) Test suppression for SootUp limitations and corrected ignore rules for test resources. Overall impact and accomplishments: The month delivered a coherent modernization of the test and build pipeline, enabling faster feedback, more reliable test outcomes, and easier maintenance. This reduces release risk and accelerates onboarding for new contributors by keeping the project on current Java baselines and updated dependencies. Technologies/skills demonstrated: Java 17/21 baseline and test workflows; Maven/Gradle configuration alignment; JUnit 5 test framework adoption; Bytecode Frontend testing and clinit coverage enhancements; test resource management; code formatting and CI workflow automation; dependency management and upgrading of core libraries (ANTLR, Guava, Oshi-core, Nonnull/Nullable, etc.).
63 Commits • 25 Features
Mar 1, 2025Month 2025-03 – SootUp (soot-oss/SootUp) modernization and reliability enhancements across test infrastructure, Java baseline, and CI. The work focused on delivering features that strengthen long-term maintainability and business value, while fixing critical reliability gaps. Key features delivered include: 1) Test binaries and test case adaptation for the updated test setup, expanding credible test coverage; 2) Bytecode Frontend-based test infrastructure modernization, removing obsolete frontend references and reintroducing WitherTest to reflect the updated pipeline; 3) Java 17 baseline upgrade with Java 21 workflow support, including pom/profile updates and CI workflow alignment for Java 17/21 test runs; 4) Test resources restructuring and improved call-graph/test resource layout with refined ignore policy; 5) Code quality improvements and test robustness, including improved handling of optionals and safety checks. Major bugs fixed include: 1) Removed Java 8 dependency constraint and aligned with newer JDKs; 2) Unchecked Optional handling bug fixes and broader Optional/Nullable safety improvements; 3) Folder name extraction bug fix; 4) Test suppression for SootUp limitations and corrected ignore rules for test resources. Overall impact and accomplishments: The month delivered a coherent modernization of the test and build pipeline, enabling faster feedback, more reliable test outcomes, and easier maintenance. This reduces release risk and accelerates onboarding for new contributors by keeping the project on current Java baselines and updated dependencies. Technologies/skills demonstrated: Java 17/21 baseline and test workflows; Maven/Gradle configuration alignment; JUnit 5 test framework adoption; Bytecode Frontend testing and clinit coverage enhancements; test resource management; code formatting and CI workflow automation; dependency management and upgrading of core libraries (ANTLR, Guava, Oshi-core, Nonnull/Nullable, etc.).
March 2025
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Quality Metrics
Correctness92.0%
Maintainability93.4%
Architecture88.4%
Performance87.6%
AI Usage20.2%
Skills & Technologies
Programming Languages
Git ConfigurationJavaJavaScriptMarkdownXMLYAML
Technical Skills
API DesignAPI DevelopmentAPI UpdateAnnotation ProcessingBuild AutomationBuild ConfigurationBuild ManagementBuild System ConfigurationBuild ToolsBuild Tools (Maven)Bytecode AnalysisCI/CDCI/CD ConfigurationCall Graph AnalysisCall Graph Construction
Repositories Contributed To
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