brettwooldridge/HikariCP

HikariCP is a high-performance JDBC connection pool library that manages database connections for Java applications. It provides a robust, thread-safe pool implementation with configurable connection limits, idle timeouts, and leak detection. The system supports integration with major monitoring frameworks, including Dropwizard, Micrometer, and Prometheus, to expose detailed metrics about pool health and performance. Additionally, it offers seamless compatibility with Hibernate and supports modern Java features like virtual threads and the Java Module System.

This period marks the development of HikariCP 5.0, introducing a modernized API with dynamic credential support, custom SQL exception handling, and a flexible metrics tracking system. The work also established the core connection pool infrastructure, including concurrent bag management, proxy wrappers, and leak detection, alongside comprehensive test coverage and build dependency updates.

10 changes

This period focused on expanding observability by adding native metrics support for Prometheus and Dropwizard 5, alongside comprehensive unit tests for these new features. The work also included broadening test coverage across utility classes and pool behavior to ensure reliability.

7 changes

This period focused on modernizing the project's observability by integrating Micrometer metrics and adding comprehensive unit tests for pool monitoring and configuration behavior. Additionally, the codebase was updated to support Java 11+ through Eclipse IDE configuration and Java module system declarations for metrics libraries.

6 changes

brettwooldridge/HikariCP was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.