During March 2025, Sambhav contributed to the checkstyle/checkstyle repository by modernizing the Javadoc Abstract Syntax Tree (AST) representation. He focused on aligning Javadoc token types, specifically P_HTML_TAG_NAME and FIELD_TYPE, with an updated AST structure to enhance the accuracy of Javadoc parsing and analysis. Leveraging his expertise in Java, AST manipulation, and code analysis, Sambhav implemented these changes through targeted commits, ensuring that the codebase now supports more reliable documentation checks. This foundational work addressed compatibility issues with HTML elements in Javadoc, laying the groundwork for future improvements in documentation quality and tooling across the project.