Generation query when the ManyToMany relationship is used by Spring Data Jpa project
Since parameter names are lost in bytecode, you need to use @Param annotation to indicate the parameter that is mapped as the :category variable in your JPQL. So, you code would look like:
@Query("SELECT b FROM Book b INNER JOIN b.categories c WHERE c IN (:categories)")List<Book> findByCategories(@Param("categories") Collection<Category> categories);?1 certainly works, but is probably not as readable.
You can directly use the JPA naming convention to solve the issue.
List<Book> findAllByCategoriesIn(Collection<Category> categories);
Hope it will help to solve the problem.