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This OpenJDK implementation requires
fdescfs(5) mounted on
/dev/fd and
procfs(5) mounted on
/proc for some functionality.
If you have not done it yet, please do the following:
mount -t fdescfs fdesc /dev/fd
mount -t procfs proc /proc
To make it permanent, you need the following lines in
/etc/fstab:
fdesc /dev/fd fdescfs rw 0 0
proc /proc procfs rw 0 0
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