apache/jackrabbit-oak
Feb 2026 – Feb 2026
1 Month active
Languages Used
Java
Technical Skills
Backend DevelopmentConcurrencyJavaQuery OptimizationSoftware RefactoringThread Management
Benjamin Habegger
PROFILE
Benjamin Habegger
Benjamin contributed backend enhancements to the apache/jackrabbit-oak repository, focusing on improving query planning predictability and internal performance. He implemented deterministic index plan selection for queries, ensuring consistent optimizer behavior regardless of LIMIT clauses, which addressed runtime variability and improved correctness. Using Java and leveraging his expertise in concurrency and thread management, Benjamin refactored executor creation by introducing an ExecutorHelper to streamline ThreadPoolExecutor usage, optimizing resource allocation for both single-threaded and concurrent scenarios. Additionally, he removed obsolete query optimization toggles, simplifying configuration and reducing maintenance overhead. His work demonstrated depth in software refactoring and query optimization within a complex codebase.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
2
Lines of code
460
Activity Months1
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Work History
February 2026
3 Commits • 2 Features
Feb 1, 2026Month: 2026-02 | Repository: apache/jackrabbit-oak. Focused on making query planning more predictable and on improving internal performance and maintainability. Delivered concrete changes with clear business value in both query optimization and resource management, reducing runtime variability and simplifying configurations.
3 Commits • 2 Features
Feb 1, 2026Month: 2026-02 | Repository: apache/jackrabbit-oak. Focused on making query planning more predictable and on improving internal performance and maintainability. Delivered concrete changes with clear business value in both query optimization and resource management, reducing runtime variability and simplifying configurations.
February 2026
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Quality Metrics
Correctness100.0%
Maintainability93.4%
Architecture93.4%
Performance93.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
Java
Technical Skills
Backend DevelopmentConcurrencyJavaQuery OptimizationSoftware RefactoringThread Managementquery optimizationunit testing
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