Worked on the swiftlang/swift-java repository to deliver a Swift-Java Package Mapping Enhancement, focusing on improving cross-language integration between Swift and Java. Refactored the handling of dependent configuration files by introducing a dedicated ModuleConfig mapping structure, which encapsulates module names and their configuration URLs. Updated core mapping and retrieval functions to utilize this new structure, resulting in more accurate and maintainable Java package mappings for Swift modules. Addressed a critical bug related to Java package mapping for dependent modules, aligning with project requirements. Applied skills in dependency management, plugin development, and both Swift and Java to strengthen the codebase’s architecture.