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https://issues.apache.org/jira/browse/DERBY-5398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13098686#comment-13098686
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Kristian Waagan commented on DERBY-5398:
----------------------------------------
I backported the change that is causing this NPE (DERBY-5390). The change fixed
one NPE and introduced another intermittent one (in a different location of the
code)... What happened before was that the NPE was simply swallowed (catch
Throwable), but there was no comment describing why Throwable was caught.
If there is no other option, I can re-introduce the old behavior (swallow NPE)
in 10.8. It would be good to understand why the NPE happens in the first place
though.
> 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
>
> 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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