Worked on the openjdk/jfx repository to improve test reliability and code quality by addressing a persistent formatting bug in the USKeyboardTest. Focused on Java development and testing, the work involved correcting an incorrect format specifier that previously caused inaccurate output during key release events. By ensuring the test now logs the typed character correctly, this change resolved a long-standing discrepancy between expected and actual test results. The fix enhanced the accuracy of test logs and reduced flakiness in keyboard input scenarios, contributing to more stable continuous integration workflows. Emphasized bug fixing and careful, low-risk improvements within a well-scoped codebase.