Worked on the spring-projects/spring-boot repository, focusing on improving the stability and correctness of configuration parsing. Addressed a bug in the ContextPairs component by refining the handling of trailing delimiters and preventing duplicate entries during nested name splitting, directly aligning with issue GH-48999. The approach emphasized code quality and performance, ensuring that nested pair structures are accurately represented and reducing the risk of downstream defects. Utilized Java for both implementation and unit testing, with a disciplined workflow that included proper commit attribution and traceability. No new features were introduced, as the primary goal was to enhance reliability and data integrity.