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From Norman Maurer <nor...@apache.org>
Subject ClassCastException / org.apache.openjpa.persistence.ArgumentException on heavy processing
Date Wed, 06 Oct 2010 12:10:56 GMT
Hi there,

we at JAMES use openjpa 2.0.1 as JPA Provider. Sometimes I see the
following Exception on "heavy processing":

RROR 13:59:10,182 | james.virtualusertable-store | Failed to get
mapping for te@localhost
<openjpa-2.0.1-r422266:989424 nonfatal user error>
org.apache.openjpa.persistence.ArgumentException: Failed to execute
query "SELECT vut FROM JamesVirtualUserTable vut WHERE (vut.user LIKE
:user OR vut.user='*') and (vut.domain like :domain or vut.domain='*')
ORDER BY vut.domain DESC". Check the query syntax for correctness. See
nested exception for details.
        at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:870)
        at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:792)
        at org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:542)
        at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:288)
        at org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:302)
        at org.apache.james.vut.JPAVirtualUserTable.mapAddressInternal(JPAVirtualUserTable.java:83)
        at org.apache.james.impl.vut.AbstractVirtualUserTable.mapAddress(AbstractVirtualUserTable.java:408)
        at org.apache.james.impl.vut.AbstractVirtualUserTable.getMappings(AbstractVirtualUserTable.java:108)
        at org.apache.james.impl.vut.AbstractVirtualUserTable.getMappings(AbstractVirtualUserTable.java:100)
        at org.apache.james.transport.mailets.VirtualUserTable.processMail(VirtualUserTable.java:89)
        at org.apache.james.transport.mailets.AbstractVirtualUserTableMailet.service(AbstractVirtualUserTableMailet.java:76)
        at org.apache.james.mailetcontainer.camel.MailetProcessor.process(MailetProcessor.java:59)
        at org.apache.camel.impl.converter.AsyncProcessorTypeConverter$ProcessorToAsyncProcessorBridge.process(AsyncProcessorTypeConverter.java:50)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
        at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
        at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:99)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
        at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:290)
        at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:202)
        at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:256)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
        at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
        at org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:72)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
        at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
        at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:99)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
        at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:290)
        at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:202)
        at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:256)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
        at org.apache.camel.processor.Pipeline.process(Pipeline.java:143)
        at org.apache.camel.processor.Pipeline.process(Pipeline.java:78)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
        at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:290)
        at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:202)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
        at org.apache.camel.processor.MulticastProcessor.doProcessParallel(MulticastProcessor.java:449)
        at org.apache.camel.processor.MulticastProcessor.access$100(MulticastProcessor.java:67)
        at org.apache.camel.processor.MulticastProcessor$1.call(MulticastProcessor.java:230)
        at org.apache.camel.processor.MulticastProcessor$1.call(MulticastProcessor.java:223)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException: java.lang.String cannot be
cast to java.lang.Integer
        at org.apache.openjpa.jdbc.kernel.PreparedSQLStoreQuery$PreparedSQLExecutor.toParameterArray(PreparedSQLStoreQuery.java:157)
        at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:855)
        ... 47 more

Which does not make any sense to me. The Statement is constructed as :

 List<JPAVirtualUser> virtualUsers =
entityManager.createNamedQuery("selectMappings")
                .setParameter("user", user)
                .setParameter("domain", domain).getResultList();

Any idea what could be wrong ?

Bye,
Norman

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