AnnotationException: A Foreign key refering has the wrong number of column. should be 2

Question

I am mapping my classes with the tables of my database, but when running a test, I get the following error:

Caused by: org.hibernate.AnnotationException: A F         


        

Answer 1

As of Java 8 (introducing @Repeatable), the wrapper annotation @JoinColumns is no longer required .

So, you can simply do this:

// bi-directional many-to-one association to Provincia
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name = "codProvincia", insertable = false, updatable = false)
@JoinColumn(name = "codRegion", insertable = false, updatable = false)
private Provincia provincia;

References:

Java 8's new Type Annotations

Repeating Annotations