Exception in thread "index-stat-thread" java.lang.NullPointerException while
calling ControlRow.getControlRowForPage(Unknown Source)
------------------------------------------------------------------------------------------------------------------------------------
Key: DERBY-5031
URL: https://issues.apache.org/jira/browse/DERBY-5031
Project: Derby
Issue Type: Bug
Components: Store
Affects Versions: 10.8.0.0
Environment:
Sun Microsystems Inc.
1.6.0_181069888
2011-02-11 18:00:25 MET
Reporter: Mike Matrigali
Nightly tests failed across many platforms with a number of failures. I
noticed this stack from the background
istats threa hanging out at the end
of the output file in a some of the cases. I don't know if this stack caused
the errors or not. It may just be a bad
error handling on shutdown. It would be good to understand why it is printed
when/where it is.
FAILURES!!!
Tests run: 13369, Failures: 3, Errors: 1
------------------------------
Exception in thread "index-stat-thread" java.lang.NullPointerException
at
org.apache.derby.impl.store.access.btree.ControlRow.getControlRowForPage(Unknown
Source)
at org.apache.derby.impl.store.access.btree.ControlRow.get(Unknown
Source)
at org.apache.derby.impl.store.access.btree.ControlRow.get(Unknown
Source)
at
org.apache.derby.impl.store.access.btree.BTreeScan.reposition(Unknown Source)
at
org.apache.derby.impl.store.access.btree.BTreeForwardScan.fetchRows(Unknown
Source)
at
org.apache.derby.impl.store.access.btree.BTreeScan.fetchNextGroup(Unknown
Source)
at
org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl$KeyComparator.fetchRows(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.run(Unknown
Source)
at java.lang.Thread.run(Thread.java:619)
Here are some links from sun nightly tests runs showing this error, it happened
in a lot of the runs but not all the ones I looked at.
http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/lin/1069888-suitesAll_diff.txt
http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/sles/1069888-suitesAll_diff.txt
http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/sol/1069888-suitesAll_diff.txt
http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/sol32/1069888-suitesAll_diff.txt
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