RFR: 8275536: [TEST] java.io.File and java.nio.File should return the same timestamp for lastModified [v2]

[Alan Bateman]

On Thu, 21 Oct 2021 05:27:37 GMT, Clive Verghese <cverghese at openjdk.org> wrote:

>> The test validated that the precision returned by `java.io.File.lastModified` and `java.nio.file.Files.getLastModifiedTime` are the same.
>
> Clive Verghese has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update function and variable names

Can you add a bit more information here, or to the JBS issue, on this? Is this something to do with the glibc that Amazon are using?

In general Files::getLastLastModified may return a FileTime of higher precision that the milliseconds returned by File::lastModified so maybe this test is to ensure that improves are ported to java.io.File too? At some point I expect we will re-implement File to layer over the newer implementation so File will benefit from improvements.

I think test/jdk/java/io/File may be a better place for the test.

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PR: https://git.openjdk.java.net/jdk/pull/6054