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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4825) Assert failure in LargeDataLocksTest.testGetCharacterStream() because of wrong number of locks
Date Thu, 30 Sep 2010 20:26:33 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916636#action_12916636

Knut Anders Hatlen commented on DERBY-4825:

I reran the entire suites.All on this platform and then it happened again (failed on the same
assertion, but lock count was 2 not 3 this time):

junit.framework.AssertionFailedError: expected:<0> but was:<2>
        at junit.framework.Assert.fail(Assert.java:47)
        at junit.framework.Assert.failNotEquals(Assert.java:283)
        at junit.framework.Assert.assertEquals(Assert.java:64)
        at junit.framework.Assert.assertEquals(Assert.java:195)
        at junit.framework.Assert.assertEquals(Assert.java:201)
        at org.apache.derbyTesting.functionTests.tests.jdbcapi.LargeDataLocksTest.testGetCharacterStream(LargeDataLocksTest.java:72)

> Assert failure in LargeDataLocksTest.testGetCharacterStream() because of wrong number
of locks
> ----------------------------------------------------------------------------------------------
>                 Key: DERBY-4825
>                 URL: https://issues.apache.org/jira/browse/DERBY-4825
>             Project: Derby
>          Issue Type: Bug
>          Components: Services
>    Affects Versions:
>         Environment: FreeBSD 8.1, i386
> Diablo Java(TM) SE Runtime Environment (build 1.6.0_07-b02)
>            Reporter: Knut Anders Hatlen
>            Priority: Minor
> I saw this failure when running suites.All on the release candidate:
> 1) testGetCharacterStream(org.apache.derbyTesting.functionTests.tests.jdbcapi.LargeDataLocksTest)junit.framework.AssertionFailedError:
expected:<0> but was:<3>
> 	at org.apache.derbyTesting.functionTests.tests.jdbcapi.LargeDataLocksTest.testGetCharacterStream(LargeDataLocksTest.java:72)
> 	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:109)
> 	at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> 	at junit.extensions.TestSetup$1.protect(TestSetup.java:23)
> 	at junit.extensions.TestSetup.run(TestSetup.java:27)
> 	at org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
> The assertion expects the lock table to have zero locks, but it finds three.
> The test succeeded when I later ran it 100 times outside of suites.All.
> The failure looks similar to DERBY-4301, but I saw this in a pure 10.6 environment, whereas
DERBY-4301 happened in a mixed 10.3/10.5 environment. Also, DERBY-4301 is consistently reproducible,
whereas this failure appears to be intermittent.

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