Worked on targeted maintenance and documentation improvements across Apache Jena and FalkorDB/falkordb-browser repositories, focusing on Java development and error handling. Addressed three bugs by clarifying API documentation, updating Javadoc references to the correct RIOT API classes, and refining error messages for language tag processing in Apache Jena, which reduced deprecation warnings and improved downstream integration. In FalkorDB/falkordb-browser, contributed to documentation quality by correcting a README typo, enhancing user clarity. The work emphasized API refactoring, precise bug fixes, and clear technical communication, demonstrating a methodical approach to codebase reliability and maintainability rather than feature development during the two-month period.