List<Class<?>> classes = new ArrayList<>();
    String packageName = getClass().getPackage().getName();
    for (ClassPath.ClassInfo classInfo :
        ClassPath.from(getClass().getClassLoader()).getTopLevelClasses(packageName)) {
      Class<?> cls;
      try {
        cls = classInfo.load();
      } catch (NoClassDefFoundError e) {

    List<Class<?>> classes = new ArrayList<>();
    String packageName = getClass().getPackage().getName();
    for (ClassPath.ClassInfo classInfo :
        ClassPath.from(getClass().getClassLoader()).getTopLevelClasses(packageName)) {
      Class<?> cls;
      try {
        cls = classInfo.load();
      } catch (NoClassDefFoundError e) {

                ClassLoader parentClassLoader = Thread.currentThread().getContextClassLoader();
                if (parentClassLoader == null) {
                    parentClassLoader = GroovyEngine.class.getClassLoader();
                }
                final GroovyClassLoader classLoader = new GroovyClassLoader(parentClassLoader);
                try {