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https://issues.apache.org/jira/browse/DERBY-5398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100134#comment-13100134
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Knut Anders Hatlen commented on DERBY-5398:
-------------------------------------------
The explanation sounds reasonable, and so does the proposed fix. What I don't
understand is why the bug is intermittent. Is the LCC sometimes available
during engine shutdown and sometimes not?
> NullPointerException in storemore/bug3498.sql
> ---------------------------------------------
>
> Key: DERBY-5398
> URL: https://issues.apache.org/jira/browse/DERBY-5398
> Project: Derby
> Issue Type: Bug
> Components: Services
> Affects Versions: 10.9.0.0
> Reporter: Knut Anders Hatlen
> Attachments: derby-5398-01-aa-dummyTransaction.diff, derby-5398.sql
>
>
> The tinderbox failed when testing revision 1164361:
> Failure Details:
> ********* Diff file derbyall/storeall/storemore/bug3498.diff
> *** Start: bug3498 jdk1.6.0_24 storeall:storemore 2011-09-02 10:04:59 ***
> 322 del
> < ij>
> 322 add
> > ij> Exception in thread "main" java.lang.NullPointerException
> Test Failed.
> *** End: bug3498 jdk1.6.0_24 storeall:storemore 2011-09-02 10:05:02 ***
> Here's the full stack trace:
> Exception in thread "main" java.lang.NullPointerException
> at
> org.apache.derby.impl.sql.catalog.SequenceUpdater.updateCurrentValueOnDisk(Unknown
> Source)
> at org.apache.derby.impl.sql.catalog.SequenceUpdater.clean(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.SequenceUpdater.clearIdentity(Unknown
> Source)
> at
> org.apache.derby.impl.services.cache.ConcurrentCache.removeEntry(Unknown
> Source)
> at org.apache.derby.impl.services.cache.ConcurrentCache.ageOut(Unknown
> Source)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.clearSequenceCaches(Unknown
> Source)
> at org.apache.derby.impl.db.BasicDatabase.stop(Unknown Source)
> at org.apache.derby.impl.services.monitor.TopService.stop(Unknown
> Source)
> at org.apache.derby.impl.services.monitor.TopService.shutdown(Unknown
> Source)
> at org.apache.derby.impl.services.monitor.BaseMonitor.shutdown(Unknown
> Source)
> at org.apache.derby.impl.services.monitor.BaseMonitor.shutdown(Unknown
> Source)
> at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
> at org.apache.derby.jdbc.AutoloadedDriver.connect(Unknown Source)
> at java.sql.DriverManager.getConnection(DriverManager.java:582)
> at java.sql.DriverManager.getConnection(DriverManager.java:207)
> at org.apache.derby.impl.tools.ij.utilMain.cleanupGo(Unknown Source)
> at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
> at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
> at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
> at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
> at org.apache.derby.tools.ij.main(Unknown Source)
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