[hibernate-issues] [Hibernate-JIRA] Resolved: (HSEARCH-48) NullPointerException when Query.list()

[Emmanuel Bernard (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-48?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Emmanuel Bernard resolved HSEARCH-48.
-------------------------------------

    Resolution: Rejected

Please use the user forum.
If you believe you reached a bug, you need to attach a minimal running test case
Also the project you are willing to reach is Hibernate3 (not Hibernate Search)

> NullPointerException when Query.list()
> --------------------------------------
>
>                 Key: HSEARCH-48
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-48
>             Project: Hibernate Search
>          Issue Type: Bug
>          Components: query
>         Environment: Linux, Oracle/MySQL
>            Reporter: Eddie Man
>            Priority: Critical
>         Attachments: screenshot21.png
>
>
> Suppose I have the following mapping:
> ClassA
> =======
> <class name="ClassA" table="TableA" lazy="false">
> 	<id name="ID" column="ID" type="integer" unsaved-value="0">
> 		<generator class="native">
> 		</generator>
> 	</id>
> 	<one-to-one name="classB" class="ClassB" cascade="save-update,lock" property-ref="classA" lazy="no-proxy" access="field"/>
> </class>
> ClassB
> =======
> <class name="ClassB" table="TableB" lazy="false">
> 	<composite-id>
> 		<key-property name="ID" column="ID" type="integer"/>
> 		<key-many-to-one name="classA" column="ClassAID" class="ClassA">
> 		</key-many-to-one>
> 	</composite-id>
> </class>
> Pre-condition :
> TableA
> +----+
> | ID |
> +----+
> |  1 |
> +----+
> TableB
> +----+----------+
> | ID | ClassAID |
> +----+----------+
> |  1 |        1 |
> +----+----------+
> When I use Session.createQuery("From ClassA as ClassA").list(), it throw the following exception:
> java.lang.NullPointerException
> 	at org.hibernate.persister.entity.AbstractEntityPersister.loadByUniqueKey(AbstractEntityPersister.java:1641)
> 	at org.hibernate.type.EntityType.loadByUniqueKey(EntityType.java:608)
> 	at org.hibernate.type.EntityType.resolve(EntityType.java:382)
> 	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:2211)
> 	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2095)
> 	at org.hibernate.loader.Loader.list(Loader.java:2090)
> 	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375)
> 	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:1123)
> 	at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)

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