[Hibernate-JIRA] Commented: (HHH-1852) @MappedSuperclass - PropertyAccessException - hibernate-issues

Wednesday, 27 February 2008

    [
http://opensource.atlassian.com/projects/hibernate/browse/HHH-1852?page=c...
] 

Carlo Luib-Finetti commented on HHH-1852:
-----------------------------------------

I had the same error while executing a HQL query which gives a scalar result (no entity).
The query was successfully executed on the database, and then in the process of resolving
the query results, Hibernate ran into that error.

What I can see in the debugger is that DirectPropertyAccessor$DirectGetter.get() throws an
IllegalArgumentException; the causing Field is the "id" field of my base entity
class (@MappedSuperClass) of the entity under inspection.

I solved this problem with a workaround: I changed the query from HQL to a native SQL
query (gently using the generated SQL from Hibernate's translation of my HQL -:))

...
 @MappedSuperclass - PropertyAccessException
 -------------------------------------------

                 Key: HHH-1852
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1852
             Project: Hibernate3
          Issue Type: Bug
          Components: core
    Affects Versions: 3.2.0.cr2
         Environment: hibernate-3.2.0.cr2, hibernate-annotations-3.2.0.cr1,
hibernate-entitymanager-3.2.0.cr1
            Reporter: David de Mingo
         Attachments: src.zip

 Caused by: org.hibernate.PropertyAccessException: could not get a field value by
reflection getter of org.endea.model.product.ProductAttribute.data
 	at
org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:35)
 	at
org.hibernate.property.DirectPropertyAccessor$DirectGetter.getForInsert(DirectPropertyAccessor.java:40)
 	at
org.hibernate.tuple.AbstractEntityTuplizer.getPropertyValuesToInsert(AbstractEntityTuplizer.java:264)
     ...
 Caused by: java.lang.IllegalArgumentException
 	at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:37)
 	at sun.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:18)
 	at java.lang.reflect.Field.get(Field.java:357)
 	at
org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:32)
 	... 41 morer 
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[Hibernate-JIRA] Commented: (HHH-1852) @MappedSuperclass - PropertyAccessException