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https://issues.apache.org/jira/browse/OPENJPA-812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Donald Woods updated OPENJPA-812:
---------------------------------
Affects Version/s: (was: 2.0.0-M2)
2.0.0-M1
Fix Version/s: 2.0.0-M1
> slices: aggregate queries fail if any slice has empty results
> -------------------------------------------------------------
>
> Key: OPENJPA-812
> URL: https://issues.apache.org/jira/browse/OPENJPA-812
> Project: OpenJPA
> Issue Type: Bug
> Components: slice
> Affects Versions: 2.0.0-M1
> Reporter: Fernando
> Assignee: Pinaki Poddar
> Priority: Critical
> Fix For: 2.0.0-M1
>
> Attachments: urop.diff
>
>
> NPE when doing aggregate queries. I can only guess that it's because the
> results from a slice is null. Easy fix. I will attach a very small patch.
> 2008-12-03 18:14:13,348 [pool-2-thread-2] ERROR
> com.protrade.fanwars.base.services.FanwarsAppEventHandlerWorker -
> doRefreshTeamFanBasePoints: Trouble loading TeamFan:
> <<TeamFanId:TeamFan:8574250>>
> <openjpa-2.0.0-SNAPSHOT-r422266:723088M nonfatal user error>
> org.apache.openjpa.persistence.ArgumentException: Failed to execute query
> "select count( this ), max( this.createTime ) from
> com.protrade.fandom.data.entities.CheerStatus this where this.teamFan = :p0
> AND this.createTime > :p1 AND this.createTime <= :p2 AND this.points > 0".
> Check the query syntax for correctness. See nested exception for details.
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:857)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:779)
> at
> org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:525)
> at
> org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:257)
> at
> org.apache.openjpa.persistence.QueryImpl.getSingleResult(QueryImpl.java:452)
> at com.protrade.common.persistence.JPAUtil.execute(JPAUtil.java:181)
> at
> com.protrade.common.persistence.JPAUtil.executeUnique(JPAUtil.java:162)
> at
> com.protrade.common.persistence.JPADQuery.uniqueResult(JPADQuery.java:32)
> at
> com.protrade.common.persistence.BaseRootDAOBase.runUniqueQueryNCS(BaseRootDAOBase.java:290)
> at
> com.protrade.common.persistence.BaseDAOBase.runUniqueQueryNCS(BaseDAOBase.java:132)
> at
> com.protrade.fandom.data.FandomCoreDAO.getCheerStatusCountLastDate(FandomCoreDAO.java:582)
> at
> com.protrade.fandom.data.FandomCoreDAO.getTeamFanBasePointsCount(FandomCoreDAO.java:547)
> at
> com.protrade.fanwars.base.services.FanwarsAppEventHandlerWorker.doRefreshTeamFanBasePoints(FanwarsAppEventHandlerWorker.java:795)
> at
> com.protrade.fanwars.base.services.FanwarsAppEventHandler$11.run2(FanwarsAppEventHandler.java:270)
> at
> com.protrade.fanwars.base.services.FanwarsAppEventHandler$FanwarsWorkerRunnable.run(FanwarsAppEventHandler.java:441)
> at
> com.protrade.common.spring.OpenEMFilter$BindThreadRunnable.run(OpenEMFilter.java:129)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
> at java.util.concurrent.FutureTask.run(FutureTask.java:123)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:65)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:168)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
> at java.lang.Thread.run(Thread.java:595)
> Caused by: java.lang.NullPointerException
> at
> org.apache.openjpa.slice.jdbc.UniqueResultObjectProvider.max(UniqueResultObjectProvider.java:126)
> at
> org.apache.openjpa.slice.jdbc.UniqueResultObjectProvider.next(UniqueResultObjectProvider.java:98)
> at
> org.apache.openjpa.kernel.QueryImpl.singleResult(QueryImpl.java:1292)
> at org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1226)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:995)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:848)
> ... 23 more
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