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 Wed, 14 Jun 2006 18:21:19 +0200 (CEST)
Date: Wed, 14 Jun 2006 18:21:18 +0200
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From: Lothar Krenzien <lkrenzien@web.de>
To: cayenne-user@incubator.apache.org
Subject: IllegalStateException in DataRowStore (thrown by LRUMap)
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Hi,

I'm not sure where to post it, but because I get this error by cayenne I try it first here. A few days ago I reported a NPE within the class apache.commons.map.LRUMap wich is used by the class "DataRowStore". After synchronizing all access to the corresponding field the NPE went away but now I have another exception:

2006-06-14 00:26:22,359 [ERROR] BaseDataLoggerGate.com.sunreader.sr2.gate.BaseDataLoggerGate.doPost: >
java.lang.IllegalStateException: Entry.next=null, data[removeIndex]=<ObjectId:TblStatusstatus=ins>=org.objectstyle.cayenne.DataRow@1f1d2ce[values={description=inserted, status=ins}, version=-9223372036854491432, replaces=-9223372036854775808] previous=<ObjectId:TblEffBlockDataeffBlockDataId=24455598>=org.objectstyle.cayenne.DataRow@4bac35[values={tempValue=31.35, efficiencyValue=1.0761, effBlockDataId=24455598, energyValue=8.16, efficiencyBlockId=767, status=ins, irradiationValue=673.98, earnings=4.4064, importEffBlockDataId=1042169, dataDate=Mon Jun 12 11:30:00 CEST 2006, co2Saving=6.12}, version=-9223372036854494908, replaces=-9223372036854495032] key=<ObjectId:TblLoggerloggerId=923> value=org.objectstyle.cayenne.DataRow@1a87890[values={plantId=923, newSerialNumber=null, commChannelType=analog, loggerProductId=1, loggerId=923, serialNumber=DL-NE101-01331, commChannelManufacturer=Conergy}, version=-9223372036854491407, replaces=-9223372036854775808] size=10000 maxSize=10000
Please check that your keys are immutable, and that you have used synchronization properly. If so, then please report this to commons-dev@jakarta.apache.org as a bug.
at org.apache.commons.collections.map.LRUMap.reuseMapping(LRUMap.java:300)
at org.apache.commons.collections.map.LRUMap.addMapping(LRUMap.java:266)
at org.apache.commons.collections.map.AbstractHashedMap.put(AbstractHashedMap.java:283)
at org.objectstyle.cayenne.access.DataRowStore.processUpdatedSnapshots(DataRowStore.java:621)
at org.objectstyle.cayenne.access.DataRowStore.processSnapshotChanges(DataRowStore.java:575)
at org.objectstyle.cayenne.access.DataRowStore.snapshotsUpdatedForObjects(DataRowStore.java:314)
at org.objectstyle.cayenne.access.ObjectResolver.objectsFromDataRows(ObjectResolver.java:159)
at org.objectstyle.cayenne.access.ObjectResolver.synchronizedObjectsFromDataRows(ObjectResolver.java:134)
at org.objectstyle.cayenne.access.DataDomainQueryAction.interceptObjectConversion(DataDomainQueryAction.java:375)
at org.objectstyle.cayenne.access.DataDomainQueryAction.execute(DataDomainQueryAction.java:151)
at org.objectstyle.cayenne.access.DataDomain.onQuery(DataDomain.java:765)
at org.objectstyle.cayenne.util.ObjectContextQueryAction.runQuery(ObjectContextQueryAction.java:253)
at org.objectstyle.cayenne.access.DataContextQueryAction.execute(DataContextQueryAction.java:90)
at org.objectstyle.cayenne.access.DataContext.onQuery(DataContext.java:1422)
at org.objectstyle.cayenne.access.DataContext.performQuery(DataContext.java:1411)
at com.conergy.sunreader.sr2.back.dao.ProductDAO.isLoggerAlreadyAvailable(Unknown Source)

I't would be glad to get an answer as far as possible.

Thanks, Lothar
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