@OutputFile
    abstract RegularFileProperty getDestinationFile();

    /**
     * {@inheritDoc}
     */
    @Override
    @PathSensitive(PathSensitivity.NAME_ONLY)
    FileTree getSource() {
        return super.getSource();
    }

    @TaskAction
    def extract() {
        Date start = new Date()

        //parsing all input files into metadata
        //and placing them in the repository object

    private static final List<Class<? extends Annotation>> NULLABLE_ANNOTATIONS = [Nullable, org.jetbrains.annotations.Nullable]

    NullabilityBreakingChangesRule(Map<String, Object> params) {
        super(params)
    }

    @Override
    Violation maybeViolation(JApiCompatibility member) {

        if (isNewOrRemoved(member)) {
            return null
        }

        List<String> warnings = []