NullPointerException during system.nstest.utils.Dbutil.update_one_row
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Key: DERBY-5421
URL: https://issues.apache.org/jira/browse/DERBY-5421
Project: Derby
Issue Type: Bug
Affects Versions: 10.8.2.1
Reporter: Myrna van Lunteren
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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