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Posted to derby-dev@db.apache.org by "Myrna van Lunteren (Resolved) (JIRA)" <ji...@apache.org> on 2011/10/03 19:51:35 UTC
[jira] [Resolved] (DERBY-5421) NullPointerException during
system.nstest.utils.Dbutil.update_one_row
[ https://issues.apache.org/jira/browse/DERBY-5421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Myrna van Lunteren resolved DERBY-5421.
---------------------------------------
Resolution: Fixed
Fix Version/s: 10.9.0.0
10.8.2.2
I think the changes for this particular issue are complete.
> NullPointerException during system.nstest.utils.Dbutil.update_one_row
> ---------------------------------------------------------------------
>
> Key: DERBY-5421
> URL: https://issues.apache.org/jira/browse/DERBY-5421
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.8.2.1
> Environment: Windows XP (embedded), SUSE Linux (10) (client/server), both with ibm 1.6 SR9 FP1
> Reporter: Myrna van Lunteren
> Fix For: 10.8.2.2, 10.9.0.0
>
> Attachments: DERBY-5421_1.diff, DERBY-5421_2.diff
>
>
> The nstest - both embedded (on Windows XP) and client/server configuration (on SUSE Linux 10) ran into a NullPointerException during the call to update_one_row.
> The test only ran for 5 days, vs. 10.8.1.2 8 days, and I've never seen this error before:
> sample (console) output:
> total memory: 20962816 free: 3036264 Wed Sep 14 00:28:00 PDT 2011
> TObj -->NULL error message detected
> TObj -->Here is the NULL exception - java.lang.NullPointerException
> TObj -->Stack trace of the NULL exception - java.lang.NullPointerException
> at org.apache.derbyTesting.system.nstest.utils.DbUtil.update_one_row(DbUtil.java:275)
> at org.apache.derbyTesting.system.nstest.tester.TesterObject.doIUDOperation(TesterObject.java:162)
> at org.apache.derbyTesting.system.nstest.tester.Tester2.startTesting(Tester2.java:109)
> at org.apache.derbyTesting.system.nstest.NsTest.run(NsTest.java:555)
> TObj -->At this point - executing update_one_row, exception thrown was : null
> TObj -->NULL error message detected
> TObj -->Here is the NULL exception - java.lang.NullPointerException
> TObj -->Stack trace of the NULL exception - java.lang.NullPointerException
> at org.apache.derbyTesting.system.nstest.utils.DbUtil.update_one_row(DbUtil.java:275)
> at org.apache.derbyTesting.system.nstest.tester.TesterObject.doIUDOperation(TesterObject.java:162)
> at org.apache.derbyTesting.system.nstest.tester.Tester1.startTesting(Tester1.java:118)
> at org.apache.derbyTesting.system.nstest.NsTest.run(NsTest.java:551)
> TObj -->At this point - executing update_one_row, exception thrown was : null
>
> Looking at the source of nstest.utils.DbUtil.update_one_row it's calling ps2.close():
> ----------------------------
> ....
> column = colnames[ind % NUMTYPES]; // randomly gets one of the columns
> // of the table
>
> try {
>
> ps2 = conn.prepareStatement(" update nstesttab set " + column
> + " = ? " + " where serialkey = " + skey);
>
> } catch (Exception e) {
> ps2.close();
> printException(
> "closing update prepared stmt in dbUtil.update_one_row() ",
> e);
> return rowsUpdated;
> }
> ....
> ----------------------------
> At first glance, this seems a test issue, but I think it possible the test is hiding something more interesting, so I'm not marking this as component 'test'.
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