CODEWITHSUNDEEP
javaspringhibernatespring-boot
mattt
mattt

Reputation: 215

Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property:

a create relation ManyToMany beetwen my Subject table and Group table. But I have problem with "mappedBy

Subject class :

@ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
@Fetch(value = FetchMode.SUBSELECT)
@JoinTable(
    name = "ugroup_subject",
    joinColumns = @JoinColumn(
        name = "subject_id", referencedColumnName = "id"),
    inverseJoinColumns = @JoinColumn(
        name = "group_id", referencedColumnName = "id")

)
    List<Group> groups;

Group class :

 @ManyToMany(mappedBy = "group")
    private List<Subject> subjects;

And this is my error :

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.example.tim.model.Subject.group in com.example.tim.model.Group.subjects

Where did I make a mistake? Thank you in advance for your help !

Upvotes: 0

Views: 5331

Answers (1)

Alien
Alien

Reputation: 15878

Typo here

Change @ManyToMany(mappedBy = "group") to @ManyToMany(mappedBy = "groups")

Upvotes: 3

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