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Date: Fri, 2 Oct 2009 13:13:23 -0700 (PDT)
From: "Rick Curtis (JIRA)" <jira@apache.org>
To: dev@openjpa.apache.org
Subject: [jira] Created: (OPENJPA-1336) Intermittent test failure in
 org.apache.openjpa.persistence.generationtype.TestGeneratedValues when
 running on MySQL
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Intermittent test failure in org.apache.openjpa.persistence.generationtype.TestGeneratedValues when running on MySQL
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                 Key: OPENJPA-1336
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1336
             Project: OpenJPA
          Issue Type: Bug
          Components: lib
            Reporter: Rick Curtis


As reported in OPENJPA-1168:

Milosz Tylenda added a comment - 09/Jul/09 09:17 AM
This reminds me of a test case which sometimes fails for me while running against MySQL and which I did not have time to look at. Maybe this is connected although the test case is single-threaded. The stack trace I am receiving is:

testDefaultValues(org.apache.openjpa.persistence.generationtype.TestGeneratedValues) Time elapsed: 0.787 sec <<< FAILURE!
junit.framework.AssertionFailedError
        at junit.framework.Assert.fail(Assert.java:47)
        at junit.framework.Assert.assertTrue(Assert.java:20)
        at junit.framework.Assert.assertFalse(Assert.java:34)
        at junit.framework.Assert.assertFalse(Assert.java:41)
        at org.apache.openjpa.persistence.generationtype.TestGeneratedValues.testDefaultValues(TestGeneratedValues.java:49)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at junit.framework.TestCase.runTest(TestCase.java:154)
        at junit.framework.TestCase.runBare(TestCase.java:127)
        at org.apache.openjpa.persistence.test.PersistenceTestCase.runBare(PersistenceTestCase.java:466)
        at junit.framework.TestResult$1.protect(TestResult.java:106)
        at junit.framework.TestResult.runProtected(TestResult.java:124)
        at junit.framework.TestResult.run(TestResult.java:109)
        at junit.framework.TestCase.run(TestCase.java:118)
        at org.apache.openjpa.persistence.test.PersistenceTestCase.run(PersistenceTestCase.java:181)
        at junit.framework.TestSuite.runTest(TestSuite.java:208)
        at junit.framework.TestSuite.run(TestSuite.java:203)
        at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:213)
        at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
        at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:127)
        at org.apache.maven.surefire.Surefire.run(Surefire.java:177)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:345)
        at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1009)

The TestGeneratedValues.java:49 contains:

        assertFalse(gv.getUuidstring().equals(gv2.getUuidstring()));

This means UUID generator sometimes generates duplicates. 

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