[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6708) Loading parent/child entities with foreign key in child table being its primary key results in StackOverflowError

[Florian Rampp (JIRA)]

Loading parent/child entities with foreign key in child table being its primary key results in StackOverflowError
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                 Key: HHH-6708
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6708
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.6.6
         Environment: HSQL 1.8.0.10 (also reproducible with Oracle 11g, with Oracle JDBC 11.2.0.1.0
            Reporter: Florian Rampp
         Attachments: bugreports-hibernate-cascadeAll-1.0-SNAPSHOT-src.zip

Consider the following parent/child relationship mapping:

{code:java}
@Entity
public class Parent {

	@Id
	Long id;

//	@OneToOne(cascade = { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REMOVE, CascadeType.REFRESH,
//			CascadeType.DETACH }, orphanRemoval = true, mappedBy = "parent")
	@OneToOne(cascade = CascadeType.ALL, orphanRemoval = true, mappedBy = "parent")
	Child child;

	void setChild(Child child) {
		this.child = child;
		child.setParent(this);
	}
}


@Entity
public class Child implements Serializable {

	@Id
	@OneToOne(optional = false)
	private Parent parent;

	public void setParent(Parent parent) {
		this.parent = parent;
	}
}
{code}


When storing a parent with a child and loading it again, the load results in a StackOverflowError. When I replace the cascade type {{ALL}} with a list of all cascade types {{\{CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REMOVE, CascadeType.REFRESH, CascadeType.DETACH\}}}, the error does not occur any more.

I attached a test case.

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