During January 2025, this developer focused on stabilizing and standardizing the SpanNames API within the open-telemetry/opentelemetry-java-instrumentation repository. They migrated the SpanNames class from the incubator package to a stable location, updating imports across multiple instrumentation modules to reduce code churn and improve downstream reliability. Their work included enhancing test coverage by introducing a new test class in the stable package, ensuring the migrated API remained robust against regressions. Utilizing Java, API refactoring, and code migration skills, the developer delivered a targeted, in-depth feature that prepared the codebase for future stabilization efforts, though their contributions were limited in scope.