`Type cannot be null` exception when trying to run out Stored Procedure using Spring Data JPA

Question

I am trying to invoke a Stored Procedure whose signature looks like the following:

CREATE OR REPLACE PROCEDURE FIND_FIRST_BOOKMARK_GT(bookmark IN NUMBER, cur OUT         


        

Answer 1

This is an old question, but I faced with same issue and get fixed finally after a couple of hours of "read docs-try-error". Maybe this could be useful to someone. Your repository must look like this:

@Repository
public interface ResponseRepository extends CrudRepository{
    @Procedure(name = "Response.findFirstBookmarkGreaterThan")
    Response findFirstBookmarkGreaterThan(@Param("bookmark") Long bookmark);
}

The key is at @Procedure annotation. Use "name" instead of "value" (by default) when coding this annotation. This article at Baeldung blog gave me the final pull to resolve this error: https://www.baeldung.com/spring-data-jpa-stored-procedures.