spring data #ManyToOne #MapsId - spring-data-jpa

Question

can some one help me to map this 3 entities correctly, because i have tried many solution but not working.
i have this 3 entities :
Product,Item and Pack that should be mapped like this:
Product entity
public class Product implements Serializable {
#OneToMany(mappedBy="parentProduct", cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
#PrimaryKeyJoinColumn
private List<Pack> packListParent;
#OneToMany(mappedBy="childProduct", cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
#PrimaryKeyJoinColumn
private List<Pack> packListChild;
}
Pack entity
public class Pack implements Serializable {
#EmbeddedId
protected PackPK PackPK;
#MapsId("itemId")
#JoinColumn(name = "item_id", referencedColumnName = "item_id", insertable = true, updatable = true)
#ManyToOne(fetch = FetchType.LAZY)
private Item item;
#MapsId("parentProductId")
#JoinColumn(name = "product_id", referencedColumnName = "product_id", insertable = true, updatable = true)
#ManyToOne(fetch = FetchType.LAZY)
private Product parentProduct;
#MapsId("childProductId")
#JoinColumn(name = "child_product_id", referencedColumnName = "product_id", insertable = true, updatable = true)
#ManyToOne(fetch = FetchType.LAZY)
private Product childProduct;
}
#Embeddable
public class PackPK implements Serializable {
#Basic(optional = false)
#Column(name = "product_id")
private Long parentProductId;
#Basic(optional = false)
#Column(name = "item_id")
private Long itemId;
#Basic(optional = false)
#Column(name = "child_product_id")
private Long childProductId;
}
Item entity
public class Item implements Serializable {
#OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
#PrimaryKeyJoinColumn
private List<Pack> PackList;
}
this mapping work in eclipselink but when i have migrated to spring data jpa with eclipselink i have this warning when i launch the server application.
This is the error message :
WARN - [AnnotationConfigServletWebServerApplicationContext]
Exception encountered during context initialization - cancelling refresh attempt:
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'produitService': Unsatisfied dependency expressed through field 'PackService';
nested exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'PackService': Invocation of init method failed;
nested exception is java.lang.IllegalArgumentException: Expected id attribute type [class com.project.jpa.domain.PackPK]
on the existing id attribute [SingularAttributeImpl[EntityTypeImpl#1851998201:Item
[ javaType: class com.project.jpa.domain.Item descriptor: RelationalDescriptor(com.project.jpa.domain.Item --> [DatabaseTable(item)]), mappings: 47],
org.eclipse.persistence.mappings.ManyToOneMapping[item]]] on the identifiable type [EntityTypeImpl#1341697553:Pack [ javaType: class com.project.jpa.domain.Pack descriptor:
RelationalDescriptor(com.project.jpa.domain.Pack --> [DatabaseTable(pack_svod_content)]), mappings: 6]] but found attribute type [class com.project.jpa.domain.Item].