Re: [SOLVED] Re: empty optional to-many relations

It was a simple fix. Sorry about that. I'll look for other  
NullPointerException bugs in Radar and see if there is anything  
similarly brain-dead to fix.

thanx - ray

<rdar://problem/4697851> isValidQualifierType in JDBCAdaptor does not  
check for NULL typeName


On Aug 14, 2006, at 12:34 PM, Zak Burke wrote:

> Timo Hoepfner wrote on 8/14/06 3:07 PM:
>> 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.isValidQualifierTypeForAttribute 
>>> (EODatabaseContext.java:5174)
>>
>> 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.
>
> Wow. That was it -- I had added a new attribute to an entity and  
> hadn't
> specified its External Type. I'm impressed that you figured out the  
> root
> of the problem!
>
> This wins my vote for "Exception that is least related to its cause."
> I was lost down a different rabbit hole entirely, as this certainly
> wasn't what it seemed.
>
> Thanks for the help,
>
> zak.
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