Worked on the openmrs-core repository to address a bug in version comparison logic, specifically improving how SNAPSHOT and release versions are ordered. Refactored the ModuleUtil.compareVersions method using Java to ensure SNAPSHOT versions are consistently treated as less than release versions, which helps maintain correct build and release workflows. Enhanced the clarity and maintainability of the codebase by restructuring the logic and introducing comprehensive unit tests. These automated tests were designed to cover various SNAPSHOT versus release scenarios, providing better regression protection. The work demonstrated a focus on backend development, code quality, and robust testing practices within a collaborative environment.