IndexerTest.testRemoveFileOnFileChange fails intermittently

[ahornace]

From time to time I'm getting the following error when running ./mvnw clean test on my MacBook with JDK 1.8: IndexerTest.testRemoveFileOnFileChange:347 history cache file should be preserved

Mercurial version 5.5.1 -> not sure if related.

[vladak]

Just failed for me on my Ubuntu laptop as well.

[vladak]

A sleep was added to the test in f54c381 so there seems to be a race or the test interacts with other test.