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https://issues.apache.org/jira/browse/CALCITE-1561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16011730#comment-16011730
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Julian Hyde commented on CALCITE-1561:
--------------------------------------
6. ConcurrentModificationException in testAmbiguousDynamicStar2 under JDK 7
{noformat}
Caused by: java.util.ConcurrentModificationException
at
org.apache.calcite.test.SqlValidatorTest.testAmbiguousDynamicStar2(SqlValidatorTest.java:9431)
{noformat}
> Intermittent test failures
> --------------------------
>
> Key: CALCITE-1561
> URL: https://issues.apache.org/jira/browse/CALCITE-1561
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
>
> A few tests are currently failing intermittently.
> 1. UdfTest
> {noformat}
> UdfTest.testUserDefinedFunction:162
> Expected: is <9>
> but: was <10>
> {noformat}
> 2. StreamTest.testInfiniteStreamsDoNotBufferInMemory
> {noformat}
> FAILURE! - in org.apache.calcite.test.StreamTest
> testInfiniteStreamsDoNotBufferInMemory(org.apache.calcite.test.StreamTest)
> Time elapsed: 0.218 sec <<< ERROR!
> java.lang.RuntimeException: exception while executing [select stream * from
> orders]
> at
> org.apache.calcite.test.StreamTest.testInfiniteStreamsDoNotBufferInMemory(StreamTest.java:237)
> Caused by: java.util.NoSuchElementException
> at
> org.apache.calcite.test.StreamTest.testInfiniteStreamsDoNotBufferInMemory(StreamTest.java:237)
> {noformat}
> I don't consider any of them serious -- they are test issues, not product
> correctness issues -- but they are inconvenient because false negatives waste
> developer time.
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