During February 2025, this developer contributed to the apache/httpcomponents-core repository by addressing a bug related to protocol version error reporting. Focusing on the ProtocolVersion class, the work involved clarifying the error message to accurately describe the 'major' version parameter, replacing a misleading reference to the 'minor' version. This adjustment improved the accuracy and clarity of protocol handling, making integration and troubleshooting more straightforward for other developers. The solution was implemented using Core Java, leveraging strong Java language skills to enhance the codebase. The contribution focused on code correctness and developer experience, with attention to detail in error messaging and protocol logic.