Worked on the netty/netty repository to address caching correctness and Latin-1 consistency in the AsciiString class. Focused on fixing AsciiString.cached(String) by sanitizing cached content to accurately reflect Latin-1 byte representation, while preserving identity for ASCII and Latin-1 inputs and reconstructing the cache for strings containing non-Latin-1 characters. Enhanced reliability and performance of equality checks, particularly for mixed-content strings. Added targeted unit tests in Java to cover a range of string scenarios, including edge cases, and updated Javadoc to clarify new behaviors. Demonstrated strong skills in Java, string manipulation, and unit testing throughout the development process.