Selfreference using ManyToOne produces StackOverflowError

javierpaniza · **Posted:** Tue May 22, 2007 2:02 pm

Hi,

when I use a selfreference Hibernate fails with a StackOverflowError.

My code is:

Code:

@Entity
public class Ingredient {
   
   @Id @Hidden
   @GeneratedValue(generator="system-uuid") 
   @GenericGenerator(name="system-uuid", strategy = "uuid")
   @Column(name="ID")
   private String oid;
   
   @Length(max=40) @Required
   private String name;
   
   
   @ManyToOne(fetch=FetchType.LAZY)
   @JoinColumn(name="PARTOF")
   private Ingredient partOf; // The failed reference

// Setters and getters

Any time that I want ot access to a object of type Ingredient using the EntityManager a StackOverflowError is produces without stacktrace (and I have put ALL log level for Hibernate).

Hibernate version: Hibernate 3.2.4.sp1, Hibernate EntityManager 3.3.1.GA and Hibernate Annotations 3.3.0.

Does Hibernate JPA implementation support selfreferences ?
Maybe ss this a Hibernate bug ?
or am I missing something ?

Thank you in advance

emmanuel · **Posted:** Tue May 22, 2007 6:54 pm

yes it supports self references, usually such stack overflow comes from a wrong implementation of the POJO (like a getter or toString or equals)

javierpaniza · **Posted:** Wed May 23, 2007 1:27 pm

emmanuel wrote:

yes it supports self references

You are right. The problem was in my code.

Thank you