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https://issues.apache.org/jira/browse/DERBY-5797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13288779#comment-13288779
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Kristian Waagan commented on DERBY-5797:
----------------------------------------
This is likely a test defect, and I believe it is caused by the poorer
timer/clock resolution [by default] on Windows and the unfortunate timestamp
comparison in the test.
I've been trying to reproduce this on the Windows systems I have easy access
to, but I have been unable to do so this far. I see in the run mentioned above
that there was only one failure, but it often comes as a pair (both embedded
and client failing).
I'll rewrite the test logic, either adding a sleep (say 100 ms) or verifying
the results using UUIDs instead of timestamps.
> AssertionFailedError in
> functionTests.tests.lang.UpdateStatisticsTest.testDisposableStatsEagerness
> ---------------------------------------------------------------------------------------------------
>
> Key: DERBY-5797
> URL: https://issues.apache.org/jira/browse/DERBY-5797
> Project: Derby
> Issue Type: Bug
> Components: Test
> Affects Versions: 10.9.1.1
> Environment: windows XP on vmware, ibm 1.6
> Reporter: Myrna van Lunteren
>
> I noticed a test failure in UpdateStatisticsTest.testDisposableStatsEagerness.
> The link is:
> http://people.apache.org/~myrnavl/derby_test_results/main/windows/testlog/ibm16/1345812-suites.All_diff.txt
> The stack trace:
> testDisposableStatsEagerness(org.apache.derbyTesting.functionTests.tests.lang.UpdateStatisticsTest)junit.framework.AssertionFailedError
> at
> org.apache.derbyTesting.functionTests.tests.lang.UpdateStatisticsTest.testDisposableStatsEagerness(UpdateStatisticsTest.java:594)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
> at
> org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:113)
> at
> org.apache.derbyTesting.junit.BaseJDBCTestCase.runBareOverridable(BaseJDBCTestCase.java:424)
> at
> org.apache.derbyTesting.junit.BaseJDBCTestCase.runBare(BaseJDBCTestCase.java:441)
> at
> junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> at junit.extensions.TestSetup.run(TestSetup.java:25)
> at
> org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
> at
> junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> at junit.extensions.TestSetup.run(TestSetup.java:25)
> at
> org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
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