[jboss-jira] [JBoss JIRA] (AS7-5555) NullPointerException at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromJoinElement(HqlSqlWalker.java:393)

[Ondrej Zizka (JIRA)]

Ondrej Zizka created AS7-5555:
---------------------------------

             Summary: NullPointerException      at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromJoinElement(HqlSqlWalker.java:393)
                 Key: AS7-5555
                 URL: https://issues.jboss.org/browse/AS7-5555
             Project: Application Server 7
          Issue Type: Bug
          Components: JPA / Hibernate
    Affects Versions: 7.1.2.Final (EAP)
            Reporter: Ondrej Zizka
            Assignee: Scott Marlow


A query 
{code}

{code}

on a simple entity causes a NPEx:

{code}
Caused by: java.lang.NullPointerException
	at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromJoinElement(HqlSqlWalker.java:393) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.joinElement(HqlSqlBaseWalker.java:3516) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3302) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3180) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:706) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:562) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:299) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:247) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:248) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:183) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:105) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:80) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:168) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:219) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:197) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1736) [hibernate-core-4.1.5.SP1.jar:4.1.5.SP1]
	at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:291) [hibernate-entitymanager-4.1.5.SP1.jar:4.1.5.SP1]
	at org.jboss.as.jpa.container.AbstractEntityManager.createQuery(AbstractEntityManager.java:425) [jboss-as-jpa-7.1.2.Final.jar:7.1.2.Final]
{code}

I'm filling this here since in Hibernate jira NPEx are ignored, whereas for AS 7 / EAP 6 we agreed that NPEx is not a good way to let user know that something's wrong.

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