Collection loading is case sensitive with case insensitive db platform
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          Key: HHH-3473
          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3473
        Project: Hibernate3
      Issue Type: Bug
  Affects Versions: 3.2.4.sp1
     Environment: Hibernate 3.2.4.sp1, Hibernate Annotations 3.2.1.GA, MySQL 5.0.45
       Reporter: Jozef Saniga
     Attachments: lowercase.txt, mixedcase.txt

A fragment of my persistent POJO class:

 @Entity
 @Table(name = "USER_INFO")
 public class HibernateUserInfo
 {
   @EmbeddedId
   private HibernateUserIdImpl userId;
   @CollectionOfElements
   private List<Role> roles;
 }

My database contains only one HibernateUserInfo object and its userId is [username=sadmin, domain=LOCAL].

When I load the object using userId [username=sadmin, domain=LOCAL] roles gets populated correctly.
When I load the object using userid [username=SADmin, domain=LOCAL] roles is always empty.

The log traces from both cases are attached.

The traces show that when using the mixed case username 2 collections are built internally but only one of them gets used. org.hibernate.engine.loading.LoadContexts.locateLoadingCollectionEntry(org.hibernate.engine.CollectionKey) locates 2 different entries for sadmin and SADmin and that leads to the 2 collections.

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