7:15 a.m.
Bug when using a ResultTransformer on a cached query
----------------------------------------------------
Key: HHH-2525
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.2
Environment: Firebird 2.0 on Win XP
Reporter: Sebastien Cesbron
Attachments: testhib.zip
Using a distinct result transformer which a cached like this :
query = session.createQuery("select obj from ObjetTest obj left outer join fetch
obj.children as obj_0 order by obj.id asc");
query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);
query.setCacheable(true);
query.list();
This leads to this exception
2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter
method of property: oid
Exception in thread "main" org.hibernate.PropertyAccessException:
IllegalArgumentException occurred calling getter of ObjetTest.oid
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062)
at org.hibernate.loader.Loader.list(Loader.java:2020)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Test.main(Test.java:33)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring
class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 16 more
It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method
there is a test :
else if ( !hasTransform ) {
return row.length == 1 ? row[0] : row;
}
This causes the method to return an instance of ObjetTest in one case and an instance of
ObjetTest[1] in the other one. In the latter test, when putting the query into the query
cache, hibernate calls the getOid method on an array of ObjetTest and this causes the
exception
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3:44 p.m.
New subject: [Hibernate-JIRA] Commented: (HHH-2525) Bug when using a ResultTransformer on a cached query
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525?page=c...
]
Huey Vo commented on HHH-2525:
------------------------------
Hi,
I am experiencing the same issue, and wondering if I can get an engineering evaluation on
it. An estimated time line for a fix would also be greatly appreciated.
Regards,
Huy
Bug when using a ResultTransformer on a cached query
----------------------------------------------------
Key: HHH-2525
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.2
Environment: Firebird 2.0 on Win XP
Reporter: Sebastien Cesbron
Attachments: testhib.zip
Using a distinct result transformer which a cached like this :
query = session.createQuery("select obj from ObjetTest obj left outer join fetch
obj.children as obj_0 order by obj.id asc");
query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);
query.setCacheable(true);
query.list();
This leads to this exception
2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter
method of property: oid
Exception in thread "main" org.hibernate.PropertyAccessException:
IllegalArgumentException occurred calling getter of ObjetTest.oid
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062)
at org.hibernate.loader.Loader.list(Loader.java:2020)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Test.main(Test.java:33)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring
class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 16 more
It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method
there is a test :
else if ( !hasTransform ) {
return row.length == 1 ? row[0] : row;
}
This causes the method to return an instance of ObjetTest in one case and an instance of
ObjetTest[1] in the other one. In the latter test, when putting the query into the query
cache, hibernate calls the getOid method on an array of ObjetTest and this causes the
exception
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1:55 p.m.
New subject: [Hibernate-JIRA] Commented: (HHH-2525) Bug when using a ResultTransformer on a cached query
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525?page=c...
]
Kyle Sampson commented on HHH-2525:
-----------------------------------
Hello. We're receiving the same problem as well. Has there been any update regarding
a fix for this bug? Thanks.
Bug when using a ResultTransformer on a cached query
----------------------------------------------------
Key: HHH-2525
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.2
Environment: Firebird 2.0 on Win XP
Reporter: Sebastien Cesbron
Attachments: testhib.zip
Using a distinct result transformer which a cached like this :
query = session.createQuery("select obj from ObjetTest obj left outer join fetch
obj.children as obj_0 order by obj.id asc");
query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);
query.setCacheable(true);
query.list();
This leads to this exception
2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter
method of property: oid
Exception in thread "main" org.hibernate.PropertyAccessException:
IllegalArgumentException occurred calling getter of ObjetTest.oid
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062)
at org.hibernate.loader.Loader.list(Loader.java:2020)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Test.main(Test.java:33)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring
class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 16 more
It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method
there is a test :
else if ( !hasTransform ) {
return row.length == 1 ? row[0] : row;
}
This causes the method to return an instance of ObjetTest in one case and an instance of
ObjetTest[1] in the other one. In the latter test, when putting the query into the query
cache, hibernate calls the getOid method on an array of ObjetTest and this causes the
exception
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8:57 a.m.
New subject: [Hibernate-JIRA] Commented: (HHH-2525) Bug when using a ResultTransformer on a cached query
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525?page=c...
]
Sebastien Cesbron commented on HHH-2525:
----------------------------------------
As a workaround, you can apply the result transformer yourself after getting the result
back :
DistinctRootEntityResultTransformer transformer = new
DistinctRootEntityResultTransformer();
list = transformer.transformList(list);
Bug when using a ResultTransformer on a cached query
----------------------------------------------------
Key: HHH-2525
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.2
Environment: Firebird 2.0 on Win XP
Reporter: Sebastien Cesbron
Attachments: testhib.zip
Using a distinct result transformer which a cached like this :
query = session.createQuery("select obj from ObjetTest obj left outer join fetch
obj.children as obj_0 order by obj.id asc");
query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);
query.setCacheable(true);
query.list();
This leads to this exception
2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter
method of property: oid
Exception in thread "main" org.hibernate.PropertyAccessException:
IllegalArgumentException occurred calling getter of ObjetTest.oid
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062)
at org.hibernate.loader.Loader.list(Loader.java:2020)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Test.main(Test.java:33)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring
class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 16 more
It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method
there is a test :
else if ( !hasTransform ) {
return row.length == 1 ? row[0] : row;
}
This causes the method to return an instance of ObjetTest in one case and an instance of
ObjetTest[1] in the other one. In the latter test, when putting the query into the query
cache, hibernate calls the getOid method on an array of ObjetTest and this causes the
exception
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12:01 a.m.
New subject: [Hibernate-JIRA] Commented: (HHH-2525) Bug when using a ResultTransformer on a cached query
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525?page=c...
]
Jeremy Grodberg commented on HHH-2525:
--------------------------------------
I'm having the same (or at least a similar) problem with a native SQL query which has
a result transformer, again only when it is cached. Other than turning off the cache,
it's hard for me to work around this, since the result transformers are applied in
named SQL queries and have the added benefit of projecting column names into the queries.
(Reminder to watchers: vote on this bug if you want it fixed)
Note my stack trace diverges from the reporters where his call emanates from
org.hibernate.loader.hql.QueryLoader.list, mine emanates from
org.hibernate.loader.custom.CustomLoader.list.
Note also that this stack trace is from 3.2.6.ga under Java 1.5.0_11
org.hibernate.PropertyAccessException: could not get a field value by reflection getter of
com.modernfeed.modfeed.domain.Program.programId
at
org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:35)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3596)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3312)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2187)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2138)
at org.hibernate.loader.Loader.list(Loader.java:2096)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:289)
at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1695)
at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:142)
at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:152)
at my code calling query.list();
Caused by: java.lang.IllegalArgumentException
at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:37)
at sun.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:18)
at java.lang.reflect.Field.get(Field.java:357)
at
org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:32)
... 93 more
Bug when using a ResultTransformer on a cached query
----------------------------------------------------
Key: HHH-2525
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.2
Environment: Firebird 2.0 on Win XP
Reporter: Sebastien Cesbron
Attachments: testhib.zip
Using a distinct result transformer which a cached like this :
query = session.createQuery("select obj from ObjetTest obj left outer join fetch
obj.children as obj_0 order by obj.id asc");
query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);
query.setCacheable(true);
query.list();
This leads to this exception
2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter
method of property: oid
Exception in thread "main" org.hibernate.PropertyAccessException:
IllegalArgumentException occurred calling getter of ObjetTest.oid
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062)
at org.hibernate.loader.Loader.list(Loader.java:2020)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Test.main(Test.java:33)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring
class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 16 more
It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method
there is a test :
else if ( !hasTransform ) {
return row.length == 1 ? row[0] : row;
}
This causes the method to return an instance of ObjetTest in one case and an instance of
ObjetTest[1] in the other one. In the latter test, when putting the query into the query
cache, hibernate calls the getOid method on an array of ObjetTest and this causes the
exception
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1:22 a.m.
New subject: [Hibernate-JIRA] Commented: (HHH-2525) Bug when using a ResultTransformer on a cached query
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525?page=c...
]
Jeremy Grodberg commented on HHH-2525:
--------------------------------------
It looks to me like this problem starts manifesting in StandardQueryCachce.put() lines
78-84 (in both Hibernate core 3.2.4sp1 and 3.2.6.ga:
if ( returnTypes.length==1 ) {
cacheable.add( returnTypes[0].disassemble( result.get(i), session, null ) );
}
else {
cacheable.add( TypeFactory.disassemble( (Object[]) result.get(i), returnTypes,
null, session, null ) );
}
In my case, my SQL query does eager fetching of an associated object, so even though the
returnType is length 1 (value is ManyToOneType), the result is actually an array of 2
objects, the primary object and the associated object.
I don't know if that's a bug in StandardQueryCache.put() or a bug in
ManyToOneType.disassemble() that they don't properly handle results/objects that are
arrays or if the bug is in CustomLoader or Loader in that the resultType passed to
listUsingQueryType is the resultType of the post-transformer result but the list being put
into the cache is the pre-transformer list. I suspect the latter.
Bug when using a ResultTransformer on a cached query
----------------------------------------------------
Key: HHH-2525
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.2
Environment: Firebird 2.0 on Win XP
Reporter: Sebastien Cesbron
Attachments: testhib.zip
Using a distinct result transformer which a cached like this :
query = session.createQuery("select obj from ObjetTest obj left outer join fetch
obj.children as obj_0 order by obj.id asc");
query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);
query.setCacheable(true);
query.list();
This leads to this exception
2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter
method of property: oid
Exception in thread "main" org.hibernate.PropertyAccessException:
IllegalArgumentException occurred calling getter of ObjetTest.oid
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062)
at org.hibernate.loader.Loader.list(Loader.java:2020)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Test.main(Test.java:33)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring
class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 16 more
It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method
there is a test :
else if ( !hasTransform ) {
return row.length == 1 ? row[0] : row;
}
This causes the method to return an instance of ObjetTest in one case and an instance of
ObjetTest[1] in the other one. In the latter test, when putting the query into the query
cache, hibernate calls the getOid method on an array of ObjetTest and this causes the
exception
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10:01 a.m.
New subject: [Hibernate-JIRA] Resolved: (HHH-2525) Bug when using a ResultTransformer on a cached query
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525?page=c...
]
Max Rydahl Andersen resolved HHH-2525.
--------------------------------------
Resolution: Duplicate
should be fixed now by fix to related bug - open new issue if still an issue.
Bug when using a ResultTransformer on a cached query
----------------------------------------------------
Key: HHH-2525
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.2
Environment: Firebird 2.0 on Win XP
Reporter: Sebastien Cesbron
Attachments: testhib.zip
Using a distinct result transformer which a cached like this :
query = session.createQuery("select obj from ObjetTest obj left outer join fetch
obj.children as obj_0 order by obj.id asc");
query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);
query.setCacheable(true);
query.list();
This leads to this exception
2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter
method of property: oid
Exception in thread "main" org.hibernate.PropertyAccessException:
IllegalArgumentException occurred calling getter of ObjetTest.oid
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at
org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at
org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at
org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163)
at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80)
at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062)
at org.hibernate.loader.Loader.list(Loader.java:2020)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at Test.main(Test.java:33)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring
class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 16 more
It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method
there is a test :
else if ( !hasTransform ) {
return row.length == 1 ? row[0] : row;
}
This causes the method to return an instance of ObjetTest in one case and an instance of
ObjetTest[1] in the other one. In the latter test, when putting the query into the query
cache, hibernate calls the getOid method on an array of ObjetTest and this causes the
exception
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6 comments
5 participants
participants (5)
-
Huey Vo (JIRA) -
Jeremy Grodberg (JIRA)
-
Kyle Sampson (JIRA)
-
Max Rydahl Andersen (JIRA)
-
Sebastien Cesbron (JIRA)