Adrien Grand created LUCENE-8203:
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Summary: Windows failures when removing test directories
Key: LUCENE-8203
URL: https://issues.apache.org/jira/browse/LUCENE-8203
Project: Lucene - Core
Issue Type: Test
Reporter: Adrien Grand
I was looking at Lucene failures of Policeman Jenkins' Windows job
(https://jenkins.thetaphi.de/job/Lucene-Solr-master-Windows) and they all fail
when cleaning up temporary files/dirs used for testing, eg.
```
[junit4] ERROR 0.00s J1 | TestBoolean2 (suite) <<<
[junit4] > Throwable #1: java.io.IOException: Could not remove the
following files (in the order of attempts):
[junit4] >
C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001\tempDir-001:
java.nio.file.AccessDeniedException:
C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001\tempDir-001
[junit4] >
C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001:
java.nio.file.DirectoryNotEmptyException:
C:\Users\jenkins\workspace\Lucene-Solr-master-Windows\lucene\build\core\test\J1\temp\lucene.search.TestBoolean2_B7B1F66EB9785AE1-001
[junit4] > at
__randomizedtesting.SeedInfo.seed([B7B1F66EB9785AE1]:0)
[junit4] > at org.apache.lucene.util.IOUtils.rm(IOUtils.java:329)
[junit4] > at java.lang.Thread.run(Thread.java:748)
```
Has anyone ideas what the problem is? At first sight it looks:
- not due to unclosed index inputs or MockDirectoryWrapper would barf too
- not related to the unmap hack since we have failures on tests that do not
use MmapDirectory at all like TestNIOFSDirectory
- not due to the fact that we do not release resources in a try/finally or
try-with-resources block or junit would report the exception that prevented the
dir/input from being closed as well
It's also surprising how it sometimes fails with a DirectoryNotEmptyException
without reporting issues about deleting inner files of the directory.
I don't have much background on this issue so I could easily have missed
something.
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