return this;
        }

        @Nonnull
        public ArtifactResolverRequest build() {
            return new DefaultArtifactResolverRequest(session, trace, coordinates, repositories);
        }

        private static class DefaultArtifactResolverRequest extends BaseRequest<Session>
                implements ArtifactResolverRequest {
            @Nonnull

#   soft - Weak reference (can be garbage collected under memory pressure)
#
# CONFIGURATION BREAKDOWN:
#   SourceCacheKey                   - File and RAW model requests (session/hard for consistent file access)
#   DefaultArtifactResolverRequest   - Artifact resolution results (session/hard to avoid re-resolving)
#   DefaultVersionResolverRequest    - Version resolution results (session/soft, less critical than artifacts)