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
Worked on the apache/jackrabbit-oak repository to enhance query planning predictability and streamline internal resource management. Focused on backend development using Java, the work introduced deterministic index plan selection for queries, ensuring consistent execution plans regardless of LIMIT clauses and improving both correctness and maintainability. Refactored thread management by creating an ExecutorHelper to simplify ThreadPoolExecutor instantiation, optimizing resource usage for single-threaded scenarios. Additionally, removed obsolete query optimization feature toggles to reduce configuration complexity and ongoing maintenance. The approach emphasized software refactoring, concurrency, and unit testing, delivering targeted improvements that addressed runtime variability and clarified the system’s internal architecture.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
2
Lines of code
460
Activity Months1
Your Network
37 peopleShared Repositories
37
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
Activity
Loading activity data...
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
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline