[hibernate-issues] [Hibernate-JIRA] Commented: (EJB-249) Query.getResultList() throws undocumented EntityNotFoundException
[
http://opensource.atlassian.com/projects/hibernate/browse/EJB-249?page=co...
]
Koda Janh commented on EJB-249:
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I don't have a testcase yet (I'll try generating one for you) but I suspect the
following is going on:
- I invoke em.createQuery("select user from " + User.class.getName() + " as
user").getResultList()
- Class User has a @ManyToOne relationship to class Server, so although loading a given
User is an optional operation, loading the related Server is probably a mandatory
operation somehow.
Please see the attached log (log4j with hibernate=DEBUG logging level). It should give
you more than enough information as to what is going on inside Hibernate's guts.
Please let me know whether you still need a test case or whether this log file gives you
enough information.
Thank you!
Query.getResultList() throws undocumented EntityNotFoundException
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Key: EJB-249
URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-249
Project: Hibernate Entity Manager
Type: Bug
Components: EntityManager
Versions: 3.2.0.ga
Reporter: Koda Janh
Attachments: stacktrace.txt
I am issuing the query: "select user from " + User.class.getName() + " as
user"
and I am getting this stack-trace:
javax.persistence.EntityNotFoundException: Unable to find mobi.database.domain.Server
with id 249
at
org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound(Ejb3Configuration.java:107)
at
org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:143)
at
org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:193)
at
org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:101)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:846)
at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:266)
at org.hibernate.type.EntityType.resolve(EntityType.java:303)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2144)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2028)
at org.hibernate.loader.Loader.list(Loader.java:2023)
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 org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:64)
I've tracked down the problem to a "@Column(nullable=false)". Specifically,
if one of the objects in the result-set contain a null field that is defined as
"nullable=false" then the above exception will occur.
This behavior should either be documented in the Javadoc or the implementation should be
changed to throw one of the declared exceptions instead. Also, the actual error message is
misleading in that the specified object *is* found, but it violates the constraints of the
ORM mapping.
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