[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-4589) HqlSqlWalker.createFromJoinElement throws java.lang.NullPointerException when join Embedded classes

[Steve Ebersole (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-4589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Ebersole updated HHH-4589:
--------------------------------

    Issue Type: New Feature  (was: Bug)

> HqlSqlWalker.createFromJoinElement throws java.lang.NullPointerException when join Embedded classes
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HHH-4589
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4589
>             Project: Hibernate Core
>          Issue Type: New Feature
>          Components: query-hql
>    Affects Versions: 3.3.2
>         Environment: Hibernate 3.3.2.GA, Java 6 (Sun), Linux, Mysql 5
>            Reporter: Rodrigo Carvalho Rezende
>         Attachments: hb-hql-join-embedded-bug.tar.gz
>
>
> When I join a entity with a embedded class in HQL a null pointer exception is thrown.
> See the stack trace:
> Exception in thread "main" java.lang.NullPointerException
> 	at org.hibernate.hql.ast.HqlSqlWalker.createFromJoinElement(HqlSqlWalker.java:371)
> 	at org.hibernate.hql.antlr.HqlSqlBaseWalker.joinElement(HqlSqlBaseWalker.java:3452)
> 	at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3239)
> 	at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3112)
> 	at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:720)
> 	at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:571)
> 	at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:288)
> 	at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:231)
> 	at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:254)
> 	at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:185)
> 	at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136)
> 	at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:101)
> 	at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:80)
> 	at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:94)
> 	at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:156)
> 	at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:135)
> 	at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1651)
> 	at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:93)
> 	at BugNullPointerException.main(BugNullPointerException.java:15)
> I've isolated the behavior in an attached JSE (eclipse) project to be reproducible (pls, create the "hb_hql_join_embedded_bug" database)
> Thanks, Rodrigo.

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