Worked on improving the reliability of Jackson module loading within the spring-projects/spring-ai repository, focusing on runtime stability and test coverage. Addressed a bug where module loading could fail due to incorrect thread context class loaders by replacing the loader mechanism with direct usage of Class.forName in Java. Developed targeted unit tests in JacksonUtilsTests.java to ensure modules could be instantiated and used regardless of the thread’s context class loader, thereby reducing the risk of regressions. Utilized Java, the Spring Framework, and Jackson to enhance module wiring robustness, ultimately increasing developer confidence and reducing module-loading failures in production environments.