hibernate - Could not set field value [49] value by reflection -


could me issue, having spring boot 1.5.2 based project?

i have parent , categories entities parent, straightforward one, has:

    @id     @generatedvalue     @column(name = "parent_id")     private long id;      @jsonmanagedreference     @onetomany(mappedby = "parent", fetch = fetchtype.lazy)     @cascade({org.hibernate.annotations.cascadetype.save_update,             org.hibernate.annotations.cascadetype.delete,             org.hibernate.annotations.cascadetype.merge,             org.hibernate.annotations.cascadetype.persist,             org.hibernate.annotations.cascadetype.delete_orphan})     private list<category> categories;      public list<category> getcategories() {         return categories;     }      public void setcategories(list<category> categories) {         this.categories = categories;     } ...setters, getters, etc }

categories table has composite key (parent_id, category_code) defined embeddable class

@embeddable public class categorykey implements serializable {     private string categorycode;      private long parentid;      ... getters, setters, overriden equals , hashcode method }

in category entity have

public class category implements serializable {     @embeddedid     private categorykey categorykey;      @jsonbackreference     @manytoone     @mapsid("parentid")     @joincolumn(name = "parent_id", insertable = false, updatable = false)     private parent parent;      ... getters, setters,no-arg constructor }

when try issue post operation save new parent, throws

could not set field value [here new parent_id] value reflection

how overcome issue?


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