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From Lothar Krenzien <lkrenz...@web.de>
Subject FaultFailureException
Date Thu, 22 Jun 2006 14:47:36 GMT
Hi,

I have a web app with struts and get very often a FaultFailureException in cayenne (RC1).
Either with the text "state=hollow" or "state=transient". It happens often after editing some
data in the frontend, save and commit it and try to load the previous saved data. And when
the error occurs I get some other exceptions on nearly every database access. To 'solve' the
problem I have to logout - so that the session will be destroyed and login again (with a new
session). Now I can see all my changes -  so I'm sure that all changes were committed. What
could I'm doing wrong ?

2006-06-22 10:57:45,097 [ERROR] EditPlantConfigAction.com.sunreader.sr2.struts.actions.portal.EditPlantConfigAction.throwSystemException:
>
org.objectstyle.cayenne.FaultFailureException: [v.1.2RC1 May 31 2006] Error resolving fault
for ObjectId: <ObjectId:TblPartnerpersonId=498> and state (hollow). Possible cause -
matching row is missing from the database.
	at org.objectstyle.cayenne.access.DataContext.prepareForAccess(DataContext.java:1851)
	at org.objectstyle.cayenne.CayenneDataObject.readProperty(CayenneDataObject.java:238)
	at com.sunreader.sr2.back.auto._TblPartner.getName(_TblPartner.java:31)
	at com.sunreader.sr2.back.util.MapperHelper.partnerToBo(MapperHelper.java:314)
	at com.sunreader.sr2.back.dao.UserDAO.setAccountPersonData(UserDAO.java:118)
	at com.sunreader.sr2.back.dao.UserDAO.getUser(UserDAO.java:100)
	at com.sunreader.sr2.back.dao.UserDAO.getUserAccount(UserDAO.java:143)
	at com.sunreader.sr2.back.proxy.CayenneProxy.getUserAccount(CayenneProxy.java:105)
	at com.sunreader.sr2.back.BusinessFacade.getUserAccount(BusinessFacade.java:91)
	at com.sunreader.sr2.struts.actions.portal.EditPlantConfigAction.doExecute(EditPlantConfigAction.java:34)
	at com.sunreader.base.struts.BasicAction.execute(BasicAction.java:259)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at com.sunreader.sr2.filter.MandantSessionFilter.doFilter(MandantSessionFilter.java:63)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:495)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:754)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:684)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:876)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Unknown Source)


2006-06-22 15:46:16,242 [ERROR] EditPlantConfigAction.com.sunreader.sr2.struts.actions.portal.EditPlantConfigAction.throwSystemException:
>
org.objectstyle.cayenne.FaultFailureException: [v.1.2RC1 May 31 2006] Error resolving fault
for ObjectId: <ObjectId:TblPartnerpersonId=208> and state (transient). Possible cause
- matching row is missing from the database.
	at org.objectstyle.cayenne.access.DataContext.prepareForAccess(DataContext.java:1851)
	at org.objectstyle.cayenne.CayenneDataObject.readProperty(CayenneDataObject.java:238)
	at com.sunreader.sr2.back.auto._TblPartner.getName(_TblPartner.java:31)
	at com.sunreader.sr2.back.util.MapperHelper.partnerToBo(MapperHelper.java:314)
	at com.sunreader.sr2.back.dao.UserDAO.setAccountPersonData(UserDAO.java:118)
	at com.sunreader.sr2.back.dao.UserDAO.getUser(UserDAO.java:100)
	at com.sunreader.sr2.back.dao.UserDAO.getUserAccount(UserDAO.java:143)
	at com.sunreader.sr2.back.proxy.CayenneProxy.getUserAccount(CayenneProxy.java:105)
	at com.sunreader.sr2.back.BusinessFacade.getUserAccount(BusinessFacade.java:91)
	at com.sunreader.sr2.struts.actions.portal.EditPlantConfigAction.doExecute(EditPlantConfigAction.java:34)
	at com.sunreader.base.struts.BasicAction.execute(BasicAction.java:259)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at com.sunreader.sr2.filter.MandantSessionFilter.doFilter(MandantSessionFilter.java:63)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:495)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:754)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:684)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:876)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Unknown Source)


The error happens mostly when cayenne tries to resolve the relation tblPerson -> tblPartner.
It's  an 1:1 relation but the relation can be null. It means that a person can have a 'Partner'
but don't need it (the key column in tblPerson.partnerId can be null). What I saw is - when
the partnerId is null I get  the "state=transient" exception and when the partnerId is not
empty I get the "state=hollow" exception.  The 'partner'-dataset was created previously and
can't changed anymore. The application gets the tblPerson object with a standard query (but
needs first an account object) :

DataContext context = getDaoContext(ctx);
TblAccount account;
Expression expr = ExpressionFactory.matchExp("loginName", loginname);
List<TblAccount> accountList = context.performQuery(new SelectQuery(TblAccount.class,
expr));
return accountList (0);


and then :

if (account.getTblPerson().getTblPartner() != null) {
 TblPartner partner = account.getTblPerson().getTblPartner();
 partner.getName() ; <----- here the exception happens 
}
else {
 ...
}

What makes me wonder is - even if a person don't have a partner the condition is executed.
Additionally I have a background thread that starts every 15 minutes and executes a lot (!)
of selects and inserts. Could that have any influence ?

I would be very gratefull for every hint. If it helps - we use MSSQL 2000 and jtds
Lothar

To Andrus:
I wrote you directly a mail at your private address about the NPE in LRUMap. Maybe you can
check it and give me an answer.
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