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From "Bruno P. Kinoshita (JIRA)" <>
Subject [jira] [Created] (COLLECTIONS-661) Intermittent test failures in Windows for HashSetValuedHashMap
Date Tue, 03 Oct 2017 09:55:00 GMT
Bruno P. Kinoshita created COLLECTIONS-661:

             Summary: Intermittent test failures in Windows for HashSetValuedHashMap
                 Key: COLLECTIONS-661
             Project: Commons Collections
          Issue Type: Bug
          Components: Map
    Affects Versions: 4.1
            Reporter: Bruno P. Kinoshita
            Assignee: Bruno P. Kinoshita
             Fix For: 4.2

The collection HashSetValuedHashMap was added in 4.1. On Windows, test failures are not so
common on JVM 8. But on Linux they are harder to happen (but still do [1], [2]).

When using Windows and JVM 8, running tests on Eclipse, or Maven fail. But debugging on Windows
with Eclipse sometimes work. Indicating it may be due to a concurrency issue, where debugging
adds some extra time hiding the real issue.

I have a few ideas of where/why it could be happening, but am without a Windows box for a
few days as I'm travelling. I'm reading the codebase in the meantime, but if anybody feels
like working on it, feel free to chime in and suggest a fix/patch.


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