findOne wrapper for find() JPA method

gistfile1.java

 public T findOne(String query, Object... params) {
        try {
            ParameterizedType superclass = (ParameterizedType) getClass().getGenericSuperclass();
            Class<?> aClass = (Class<?>) ((ParameterizedType) superclass).getActualTypeArguments()[0];
            Method findMethod = aClass.getMethod("find", String.class, Object[].class);
            Object[] arr = new Object[2];
            arr[0] = query;
            arr[1] = params;
            System.arraycopy(params, 0, arr, 1, params.length);
            Object resultObj = findMethod.invoke(null, arr);
            GenericModel.JPAQuery result = (GenericModel.JPAQuery) resultObj;
            return result.first();
            //        GenericModel.JPAQuery result = T.find(query, params);
//        return result.first();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }