JDK using gettimeofday and not clock_gettime?

[Rohit Mohta]

Hello,

  While developing an in-house tool on system time related manipulation, we
learnt Java uses gettimeofday() on linux-x86_64 system call for fetching
System.currentTimeMillis().

I was wondering if we thought of using clock_gettime() system call on
Linux? Or if there are plans to update them to align with the POSIX
recommendation. From what I can see Golang, Rust are using clock_gettime().

https://github.com/openjdk/jdk11u/blob/master/src/hotspot/os/linux/os_linux.cpp#L1295-L1300
int status = gettimeofday(&time, NULL);

Per https://man7.org/linux/man-pages/man2/settimeofday.2.html

POSIX.1-2008 marks *gettimeofday*() as obsolete,
> recommending the use of clock_gettime(2)
> <https://man7.org/linux/man-pages/man2/clock_gettime.2.html> instead


Thanks!