Stefan Uhrig focused on stabilizing the geotools/geotools repository during a HANA database upgrade by addressing test fragility in the HanaGeographyOnlineTest. He adjusted the test’s tolerance from 1 to 2 ULP, accommodating minor variations in geospatial envelope computations introduced by the upgrade. This change, implemented in Java and leveraging his expertise in database testing and geospatial data, ensured the test suite remained reliable and reduced false negatives across different environments. Stefan documented the rationale and impact of the adjustment, providing clear traceability for future maintainers. His work maintained delivery quality and supported ongoing development stability within the project.