Strange Null Pointer

From: Bret Gregory (bret.gregor..ccesspointinc.com)
Date: Wed Jan 07 2004 - 14:47:03 EST

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java.lang.NullPointerException
        at
org.objectstyle.cayenne.ObjectId.getValueForAttribute(ObjectId.java:188)
        at
org.objectstyle.cayenne.access.SnapshotManager.isToOneTargetModified(Snapsho
tManager.java:340)
        at
org.objectstyle.cayenne.access.SnapshotManager.mergeObjectWithSnapshot(Snaps
hotManager.java:246)
        at
org.objectstyle.cayenne.access.DataContext.objectFromDataRow(DataContext.jav
a:335)
        at
org.objectstyle.cayenne.access.util.ContextSelectObserver.nextDataRows(Conte
xtSelectObserver.java:115)
        at
org.objectstyle.cayenne.access.DataNode.runSelect(DataNode.java:401)
        at
org.objectstyle.cayenne.access.DataNode.performQueries(DataNode.java:281)
        at
org.objectstyle.cayenne.access.DataDomain.performQueries(DataDomain.java:466
)
        at
org.objectstyle.cayenne.access.DataContext.performQueries(DataContext.java:8
86)
        at
org.objectstyle.cayenne.access.DataContext.performQuery(DataContext.java:938
)
        at
org.objectstyle.cayenne.access.DataContext.performQuery(DataContext.java:816
)
        at
org.objectstyle.cayenne.access.util.RelationshipDataSource.updateListData(Re
lationshipDataSource.java:97)
        at
org.objectstyle.cayenne.access.ToManyList.getObjectList(ToManyList.java:120)
        at
org.objectstyle.cayenne.access.ToManyList.hashCode(ToManyList.java:174)
        at java.lang.Object.toString(Object.java:206)
        at java.lang.String.valueOf(String.java:2131)
        at java.lang.StringBuffer.append(StringBuffer.java:370)
        at
api.reconciliation.conversion.AutoCbosConverter.processVendorCharges(AutoCbo
sConverter.java:220)
        at
api.reconciliation.conversion.AutoCbosConverter.processRows(AutoCbosConverte
r.java:103)
        at
api.reconciliation.conversion.AutoCbosConverter.<init>(AutoCbosConverter.jav
a:29)

I am getting this exception while trying to get the size of an ToManyList or
to create an iterator off of the List.
The list may or may not contain anything.

I have looked for similar problem with this and I found something but source
forge was being fical and not letting me get to it.

This link was posted in a Nov 22, 2002 note.
http://sourceforge.net/tracker/index.php?func=detail&aid=637545&group_id=481
32&atid=452068
<http://sourceforge.net/tracker/index.php?func=detail&aid=637545&group_id=48
132&atid=452068>

Any thoughts?

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Next in thread: Andrus Adamchik: "Re: Strange Null Pointer"
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