Contributed to the aws/aws-sdk-java-v2 repository by implementing a feature that allows string-based values for the select parameter in the Flexible Query Builder. This enhancement enables more dynamic query construction for AWS service integrations, reducing reliance on enum-like representations and minimizing boilerplate code. The work focused on maintaining backward compatibility, ensuring existing users could transition smoothly without disruption. Leveraging expertise in Java development, API design, and the AWS SDK, the developer aligned the update with customer-facing API flexibility and improved developer ergonomics. The solution also considered DynamoDB use cases, supporting broader query scenarios and long-term adoption within the SDK.