Worked on stabilizing macOS printing functionality within the openjdk/leyden repository, focusing on resolving issues with page range handling in desktop Java applications. Addressed a bug where specifying a starting page greater than one led to missing pages in printouts by correcting the calculation and transmission of the total page count to the underlying printing functions. This fix improved the reliability and accuracy of printed documents, reducing user-facing errors across Leyden workflows. The work involved Java AWT for desktop application development and required a detailed understanding of printing processes on macOS, with code changes reviewed and merged following standard open source practices.