[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3030) NullPointerException happens in versioning

[Ramy Ahmed Mahmoud Aldeeb (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_29998 ] 

Ramy Ahmed Mahmoud Aldeeb commented on HHH-3030:
------------------------------------------------

This error has been happennig to me,
this happens because there are some version values in the tables you wroking on are of null value
try to find this values and initialize them, so that the hibernate could get them as integers

> NullPointerException happens in versioning
> ------------------------------------------
>
>                 Key: HHH-3030
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3030
>             Project: Hibernate3
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.2.5
>         Environment: any
>            Reporter: John
>            Priority: Minor
>
> Here is the stack trace:
> java.lang.NullPointerException
> 	at org.hibernate.type.IntegerType.next(IntegerType.java:59)
> 	at org.hibernate.engine.Versioning.increment(Versioning.java:25)
> 	at org.hibernate.event.def.DefaultFlushEntityEventListener.getNextVersion(DefaultFlushEntityEventListener.java:358)
> 	at org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:250)
> 	at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:121)
> 	at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:196)
> 	at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
> 	at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:35)
> 	at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:969)
> 	at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)
> 	at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
>         ......
> The code is:
> 	public Object next(Object current, SessionImplementor session) {
> 		return new Integer( ( (Integer) current ).intValue() + 1 );
> 	}
> Should there be a null checking for the object "current"?

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