```

[[old_artifact_transforms_api]]
==== Registering artifact transforms extending `ArtifactTransform`

When Gradle first introduced artifact transforms, it used the base class `ArtifactTransform` for implementing them.
Gradle 5.3 introduced the interface `TransformAction` for implementing artifact transforms, replacing the previous class `ArtifactTransform` and addressing various shortcomings.

        Map<String, List<String>> artifactTransforms = groupArtifactTransformByArtifactName()
        artifactTransforms["buildSrc.jar"] == [ProjectDependencyInstrumentingArtifactTransform.class.name]
        artifactTransforms["nested-producer.jar"] == ["MakeColor"]
        artifactTransforms["nested-producer.jar.red"] == ["MakeColor"]