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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5964) Timestamp comparison failure in AutomaticIndexStatisticsTest.testStatisticsCorrectness
Date Mon, 29 Oct 2012 12:20:12 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13485984#comment-13485984
] 

Knut Anders Hatlen commented on DERBY-5964:
-------------------------------------------

Make that four failures, same night:

http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.5/testing/testlog/vista-64/1402814-suitesAll_diff.txt
http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.5/testing/testlog/vista/1402814-suitesAll_diff.txt
                
> Timestamp comparison failure in AutomaticIndexStatisticsTest.testStatisticsCorrectness
> --------------------------------------------------------------------------------------
>
>                 Key: DERBY-5964
>                 URL: https://issues.apache.org/jira/browse/DERBY-5964
>             Project: Derby
>          Issue Type: Bug
>          Components: Test
>    Affects Versions: 10.10.0.0
>            Reporter: Knut Anders Hatlen
>            Priority: Minor
>
> http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.5/testing/testlog/lin/1402814-suitesAll_diff.txt
> 1) testStatisticsCorrectness(org.apache.derbyTesting.functionTests.tests.store.AutomaticIndexStatisticsTest)junit.framework.AssertionFailedError
> 	at org.apache.derbyTesting.functionTests.tests.store.AutomaticIndexStatisticsTest.testStatisticsCorrectness(AutomaticIndexStatisticsTest.java:324)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:117)
> 	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)
> The failure is caused by this assert:
>             assertTrue(s.created.before(now));
> It might be a coincidence, but it happened the same night as Europe was switching from
DST.
> It may also be related to DERBY-5046, where a similar assert failed because poor clock
resolution made the two timestamps equal.

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