import java.io.File;
import java.util.HashSet;
import java.util.Set;

class ClassMetaDataUtil {
    static void extractFromMetadata(File metaData, Set<String> excludedPackagePatterns, Action<ClassMetaData> extractor) {
        SimpleClassMetaDataRepository<ClassMetaData> repository = new SimpleClassMetaDataRepository<>();
        repository.load(metaData);

        final Set<String> excludedPrefixes = new HashSet<>();