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Date: Fri, 10 Feb 2012 04:20:00 +0000 (UTC)
From: "Dag H. Wanvik (Updated) (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
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Subject: [jira] [Updated] (DERBY-5530) SQLChar.getCollationKey NPE in
 index-stat-thread
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     [ https://issues.apache.org/jira/browse/DERBY-5530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik updated DERBY-5530:
---------------------------------

    Attachment: repro-debug.log
    
> SQLChar.getCollationKey NPE in index-stat-thread
> ------------------------------------------------
>
>                 Key: DERBY-5530
>                 URL: https://issues.apache.org/jira/browse/DERBY-5530
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions: 10.8.2.2
>         Environment: Windows 7 - NetBeans 6.9.1
>            Reporter: Jean-Yves LINET
>         Attachments: repro-debug.log, repro.log, repro.sh, script.sh
>
>
> With this JDBC connection url is : jdbc:derby:directory:db_name;territory=fr_FR;collation=TERRITORY_BASED:PRIMARY;create=true
> I get a NullPointerException in index-stat-thread
> Sun Dec 11 19:33:11 CET 2011 Thread[pool-3-thread-1,5,main] {istat} "PROXIFLEX"."IDAXX_RES": update scheduled, reason=[no stats, row-estimate=375] (queueSize=1)
> Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main] {istat,trace@26130360} worker thread started (xid=12049) [q/p/s=1/0/1,err:k/u/c=0/0/0,rej:f/d/o=0/0/0]
> Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main] {istat,trace@26130360}     processing "PROXIFLEX"."IDAXX_RES" 
> Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main] {istat} runtime exception during normal operation
> java.lang.NullPointerException
> 	at org.apache.derby.iapi.types.SQLChar.getCollationKey(Unknown Source)
> 	at org.apache.derby.iapi.types.WorkHorseForCollatorDatatypes.stringCompare(Unknown Source)
> 	at org.apache.derby.iapi.types.CollatorSQLVarchar.stringCompare(Unknown Source)
> 	at org.apache.derby.iapi.types.SQLChar.compare(Unknown Source)
> 	at org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl$KeyComparator.compareWithPrevKey(Unknown Source)
> 	at org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.updateIndexStatsMinion(Unknown Source)
> 	at org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.generateStatistics(Unknown Source)
> 	at org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.processingLoop(Unknown Source)
> 	at org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.run(Unknown Source)
> 	at java.lang.Thread.run(Thread.java:662)
> Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main] {istat,trace@26130360} worker thread exit [q/p/s=0/0/1,err:k/u/c=0/0/0,rej:f/d/o=0/0/0]
> If I remove territory and collation parameters I don't have the exception.
> In case you want to disable automatic statistics, set derby property : derby.storage.indexStats.auto to false.

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