import org.gradle.internal.typeconversion.TypeConversionException;

public class DependencyFilesNotationConverter implements NotationConverter<FileCollection, FileCollectionDependency> {
    private final Instantiator instantiator;

    public DependencyFilesNotationConverter(Instantiator instantiator) {
        this.instantiator = instantiator;
    }

    @Override

            new DependencyMapNotationConverter<>(instantiator, DefaultExternalModuleDependency.class);
        NotationConverter<FileCollection, ? extends FileCollectionDependency> filesNotationConverter =
            new DependencyFilesNotationConverter(instantiator);
        NotationConverter<Project, ? extends ProjectDependency> projectNotationConverter =
            new DependencyProjectNotationConverter(dependencyFactory);

Class <org.gradle.api.internal.notations.DependencyFilesNotationConverter> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (DependencyFilesNotationConverter.java:0)