On 24/11/2017 17:29, Schaef, Martin wrote:
There is a fix in Java 10 that increases the precision for File.lastModified
(https://bugs.openjdk.java.net/browse/JDK-8177809 ). My issue is that the two
methods (File.lastModified and BasicFileAttributes.lastModifiedTime) behave
differently depending on the gcc version. And this is not addressed by the JDK
10 patch either.
Find my original patch below. It addresses the Java 8 issue but would work if
JDK-8177809 is back-ported.
Your patch removes the code for high precision timestamps from all
platforms, I don't think we want that.
If you backport JDK-8177809 and build with any recent gcc then you
should find that the results are consistent. If you really need to
build gcc 4.1.x (2006) then the changes for JDK-8177809 would require
#ifdef so that they aren't compiled in.
I realize your interest is jdk8u but for the main line then we do need
to re-examine the dusty #ifdef in UnixNativeDispatcher.c. I think Oracle
builds of jDK 10 use gcc 4.9.2, I believe others are probably building
with newer versions.
-Alan
