In April 2025, this developer contributed to the ExpediaGroup/xap-java-sdk repository by building integration tests and example usage for the Activity API, focusing on Activity listings and details scenarios. Using Java, they created new files to demonstrate and validate API interactions, ensuring comprehensive integration testing and clear developer guidance. Their work included updating copyright years and license headers to maintain compliance, reflecting attention to detail and process. By expanding test coverage and providing practical examples, the developer improved the reliability of Activity API integrations and streamlined onboarding for other developers, demonstrating solid skills in API integration, integration testing, and Java development.