Re: empty optional to-many relations

Am 14.08.2006 um 20:24 schrieb Zak Burke:

> <com.webobjects.appserver._private.WOComponentRequestHandler>:  
> Exception
> occurred while handling request:
> java.lang.NullPointerException
> DEBUG [2006-08-14 13:58:39,270] (LogPrintStream.java:96) -
> java.lang.NullPointerException
> at
> com.webobjects.jdbcadaptor.JDBCAdaptor.isValidQualifierType 
> (JDBCAdaptor.java:659)
> at
> com.webobjects.eoaccess.EODatabaseContext.isValidQualifierTypeForAttri 
> bute(EODatabaseContext.java:5174)

Hi Zak,

I had exactly that a few weeks ago. I was banging my head onto the  
desk for several hours (not that it helped...) Finally it turned out,  
that somehow either the "valueClassName" (e.g. "NSNumber") or the  
"valueType" (e.g. "i") was empty for some arbitrary numeric attribute  
of an Entity. Double-check every attribute of the Entities you  
suspect to be related.

Timo