Spring data first/top keywords throw error

[nitinsurana]

public interface AnotherRepository extends PagingAndSortingRepository<DataBean, Long> {

    DataBean findFirstByOrderByAmountDesc();         //this doesn't work, throws NPE

    DataBean findByTimestamp(Long timestamp);
}

[bmeurant]

What is exactly your issue ?

If it is related to the extension of a spring-data repository and spring-data syntax, I suggest you to dig into spring-data documentation and its forums.