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https://issues.apache.org/jira/browse/DERBY-5045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13005638#comment-13005638
]
Knut Anders Hatlen commented on DERBY-5045:
-------------------------------------------
The log statement that caused the NPE was added in DERBY-5089, and I cannot
find any occurrence of this test failure after DERBY-5089 was resolved. So it
sounds likely that this issue is indeed caused by istat writing to
SYSSTATISTICS after the index has been dropped, and thereby leaving an orphaned
row. But right now the issue is hidden by the NPE in DERBY-5124 (which is only
printed, so it won't cause any test failures).
> Assert failures in UpdateStatisticsTest
> ---------------------------------------
>
> Key: DERBY-5045
> URL: https://issues.apache.org/jira/browse/DERBY-5045
> Project: Derby
> Issue Type: Bug
> Components: Services, Test
> Affects Versions: 10.8.0.0
> Reporter: Knut Anders Hatlen
> Labels: derby_triage10_8
>
> I saw these failures when running suites.All against revision 1070949 + the
> 1b patch attached to DERBY-642:
> junit.framework.AssertionFailedError: Index statistics for <ALL TABLES>
> 1: {tableId=94a458d3-012e-2a1f-d23d-ffff93077fa3, tableName=<n/a>,
> indexName=<n/a>, lcols=1, rows=160, unique/card=160, created=2011-02-15
> 17:31:00.951}
> expected:<0> but was:<1>
> at
> org.apache.derbyTesting.junit.IndexStatsUtil.assertStats(IndexStatsUtil.java:132)
> at
> org.apache.derbyTesting.junit.IndexStatsUtil.assertNoStats(IndexStatsUtil.java:109)
> at
> org.apache.derbyTesting.functionTests.tests.lang.UpdateStatisticsTest.testUpdateStatistics(UpdateStatisticsTest.java:91)
> at
> org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:112)
> 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)
> 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)
> junit.framework.AssertionFailedError: Index statistics for <ALL TABLES>
> 1: {tableId=94a458d3-012e-2a1f-d23d-ffff93077fa3, tableName=<n/a>,
> indexName=<n/a>, lcols=1, rows=160, unique/card=160, created=2011-02-15
> 17:31:00.951}
> expected:<0> but was:<1>
> at
> org.apache.derbyTesting.junit.IndexStatsUtil.assertStats(IndexStatsUtil.java:132)
> at
> org.apache.derbyTesting.junit.IndexStatsUtil.assertNoStats(IndexStatsUtil.java:109)
> at
> org.apache.derbyTesting.functionTests.tests.lang.UpdateStatisticsTest.testUpdateStatistics(UpdateStatisticsTest.java:91)
> at
> org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:112)
> 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)
> 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 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)
> 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)
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