8343785: (fs) Remove syscalls that set file times with microsecond precision

[bplb]

Remove the syscalls utimes, futimes, and lutimes that set the file access and modification times using microsecond precision.

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Issue

• JDK-8343785: (fs) Remove syscalls that set file times with microsecond precision (Enhancement - P4)

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[openjdk]

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[bplb]

@TheRealMDoerr , @RealCLanger If this will eventually be integrated, it would be good if there were some testing on AIX before then. I don't think I've touched any AIX specific code, but one can't be too careful. Thanks.

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[mlbridge]

Webrevs

• 01: Full - Incremental (ef3d0a45)
• 00: Full (5442e7ce)

[AlanBateman]

We should use openForAttributeAccess if possible. If lastModifiedTime or lastAccessTime is not provided then it ensures that this method will only access one file to avoid racing with concurrent changes on the file system.

[turbanoff]

Suggested change

	followLinks ? 0 : UnixConstants.FSOPT_NOFOLLOW);
	followLinks ? 0 : UnixConstants.FSOPT_NOFOLLOW);

[TheRealMDoerr]

The included test has passed on linuxppc64le, but is disabled for AIX. At least the build has worked on AIX. We should try other tests.

[bplb]

The included test has passed on linuxppc64le, but is disabled for AIX.

I guess we should add os.family = "aix" to the @requires.

At least the build has worked on AIX.

Good. Thanks for checking.

We should try other tests.

Yes.