Worked on enhancing the stability of GeoJSON data handling in the geotools/geotools repository by addressing a parsing issue affecting FeatureCollections. Focused on backend development using Java, the work involved refining the GeoJSONReader to ensure that null values in property arrays are correctly parsed as null rather than default primitive values. This targeted bug fix reduced runtime exceptions and improved data integrity for downstream geospatial processing. The solution was implemented with a lean, maintainable change set and validated through unit testing, demonstrating a methodical approach to improving robustness in Java-based JSON parsing for geospatial data workflows.