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

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"?