[hibernate-issues] [Hibernate-JIRA] Created: (HHH-2179) Criteria query return repeated objects when quering for an object with Lazy one to many association

[Lucas Machado (JIRA)]

Criteria query return repeated objects when quering for an object with Lazy one to many association
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         Key: HHH-2179
         URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2179
     Project: Hibernate3
        Type: Bug

  Components: query-criteria  
    Versions: 3.2.0.cr2    
 Environment: Windows, HSQLDB, Hibernate Annotations
    Reporter: Lucas Machado
 Attachments: testVersao.rar

In the above scenario:

ClassA (1) -- (*) ClassB

to implement this we we have the following annotation in ClassA.

@OneToMany( cascade = CascadeType.ALL, fetch=FetchType.EAGER)
public Set<ClassB> getBs(){
....
}

in the database we have 1 row representing ClassA and 3 rows representing ClassB (associated with the unique ClassA)

The problem is:

If we query for 
"from ClassA" 
returns 1 instance of ClassA as expected

if we repeat the query using Criteria
Criteria crit = session.createCriteria(ClassA.class);
List<ClassA> l = crit.list();

The result is a list with 3 positions filled by the same instance of ClassA.

If we change the FetchType to Lazy the problem is solved

Attached is a sample maven-eclipse project with a test case

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