Developed a robust size and time parsing feature for JFR data within the eclipse-openj9/openj9 repository, focusing on enhancing performance and reliability analysis workflows. Refactored the existing conversion logic in Java to leverage regular expressions through the Pattern and Matcher classes, enabling accurate parsing of diverse unit formats for both bytes and time values. This approach improved resilience to input variations and reduced parsing errors, supporting more flexible and reliable profiling. The work centered on utility development in Core Java, extending support for multiple units and increasing data quality for performance optimization without introducing new bugs during the implementation period.