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https://issues.apache.org/jira/browse/DERBY-5965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13631677#comment-13631677
]
Knut Anders Hatlen commented on DERBY-5965:
-------------------------------------------
Actually, the current timestamp being one hour off isn't what's making the test
fail. The test inserts the current timestamp into a row in a table and reads it
back out again. Since Derby stores timestamps without the timezone, 2012-10-28
02:30:00 CET and 2012-10-28 02:30:00 CEST will be stored as the same value,
2012-10-28 02:30:00, so it doesn't influence the result which of the two values
CURRENT_TIMESTAMP returns. When reading the ambiguous timestamp back from the
table, Derby cannot tell whether the stored timestamp should be in CET or CEST,
and arbitrarily picks CET (actually, it's java.util.Calendar that picks
standard/winter time when an ambiguous time has been specified). Since we have
no way of knowing the original timezone of the timestamp once it has been
stored in the database, this behaviour sounds reasonable enough to me, and we
should update the test to accept the returned timestamp in this scenario. (We
may do better when timestamp with timezone is implemented, DERBY-4611.)
> TimeHandlingTest.testCurrentTimestamp() failed: CURRENT TIME after end of
> statement
> -----------------------------------------------------------------------------------
>
> Key: DERBY-5965
> URL: https://issues.apache.org/jira/browse/DERBY-5965
> Project: Derby
> Issue Type: Bug
> Components: Test
> Affects Versions: 10.10.1.1
> Reporter: Knut Anders Hatlen
> Priority: Minor
>
> Saw these failures, happening around the time Europe switched from DST:
> http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.5/testing/testlog/sles/1402814-suitesAll_diff.txt
> 1)
> testCurrentTimestamp(org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest)junit.framework.AssertionFailedError:
> CURRENT TIME after end of statement
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentTimestampValue(TimeHandlingTest.java:804)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentTimestampMultiple(TimeHandlingTest.java:571)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentMultiple(TimeHandlingTest.java:504)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentQuery(TimeHandlingTest.java:479)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.currentFunctionTests(TimeHandlingTest.java:291)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.testCurrentTimestamp(TimeHandlingTest.java:269)
> 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)
> 2)
> testCurrentTimestamp(org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest)junit.framework.AssertionFailedError:
> CURRENT TIME after end of statement
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentTimestampValue(TimeHandlingTest.java:804)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentTimestampMultiple(TimeHandlingTest.java:571)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentMultiple(TimeHandlingTest.java:504)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.checkCurrentQuery(TimeHandlingTest.java:479)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.currentFunctionTests(TimeHandlingTest.java:291)
> at
> org.apache.derbyTesting.functionTests.tests.lang.TimeHandlingTest.testCurrentTimestamp(TimeHandlingTest.java:269)
> 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)
> 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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