[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5787) Annotated Hibernate Entity can not have a Bean property as ID (literal id)

[yaodonghu (JIRA)]

Annotated Hibernate Entity can not have a Bean property as ID (literal id)
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                 Key: HHH-5787
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5787
             Project: Hibernate Core
          Issue Type: Bug
          Components: annotations
    Affects Versions: 3.5.6
         Environment: Hibernate 3.5.3 final, with hsql as database
            Reporter: yaodonghu
            Priority: Minor
         Attachments: FirstExample.java, SimpleAnnotation.java

the annotated entity has property name as "id", but it is not a identity property.
When using hibernate to create a simple query again the entity as 
"Select MyEntity_Alias from MyEntity MyEntity_Alias"
Then the hibernate give out the following exception: 


java.lang.NullPointerException
null
	at org.hibernate.util.StringHelper.root(StringHelper.java:260)
	at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassPropertyTableNumber(AbstractEntityPersister.java:1467)
	at org.hibernate.persister.entity.BasicEntityPropertyMapping.toColumns(BasicEntityPropertyMapping.java:62)
	at org.hibernate.persister.entity.AbstractEntityPersister.toColumns(AbstractEntityPersister.java:1443)
	at org.hibernate.hql.ast.tree.FromElement.getIdentityColumn(FromElement.java:345)
	at org.hibernate.hql.ast.tree.IdentNode.resolveAsAlias(IdentNode.java:154)
	at org.hibernate.hql.ast.tree.IdentNode.resolve(IdentNode.java:100)
	at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:117)
	at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:113)
	at org.hibernate.hql.ast.HqlSqlWalker.resolve(HqlSqlWalker.java:867)
	at org.hibernate.hql.antlr.HqlSqlBaseWalker.propertyRef(HqlSqlBaseWalker.java:1199)
	at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExpr(HqlSqlBaseWalker.java:2047)
	at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExprList(HqlSqlBaseWalker.java:1983)
	at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectClause(HqlSqlBaseWalker.java:1515)
	at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:586)
	at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:294)
	at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:237)
	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:98)
	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:1760)
	at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:47)




Step to reproduce

Using the attach Annotated entity bean file SimpleAnnotation.java
and run the FirstExample.java (both file are attached)


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