Worked on the checkstyle/checkstyle repository to enhance code style validation by addressing a specific indentation issue in Java. Focused on strengthening the IndentationCheck logic, the developer introduced a regression test targeting constructor parameters within try blocks, ensuring that future changes do not reintroduce this edge case. The approach involved creating a dedicated test input file and expanding unit test coverage to reinforce indentation rules in complex Java scenarios. Utilizing Java and software testing skills, the work improved the reliability of code style enforcement and regression safeguards, contributing to more robust and maintainable code quality checks within the Checkstyle project.