Worked on the apache/gravitino repository to enhance observability and code quality within the Gravitino Virtual File System. Focused on improving internal logging by addressing a log consistency issue in GravitinoVirtualFileSystem.java, specifically removing a redundant parameter from a LOG.warn call. This Java-based code refactoring improved log accuracy and reduced potential confusion during debugging, aligning with best practices for maintainable code. The update strengthened the reliability of WARN logs, making it easier for developers to diagnose VFS-related issues without introducing any user-facing changes. Emphasized skills in Java, code refactoring, and logging to support maintainability and efficient issue resolution within the project.