The test code when ran
 java -Xms10g -Xmx10g TestFileCopy resulted in crash

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGBUS (0x7) at pc=0x00007f9de10524b6, pid=28143, tid=0x00007f9dac6d8700
#
# JRE version: Java(TM) SE Runtime Environment (8.0_162-b35) (build 1.8.0_162-b35)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.162-b35 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# [thread 140315643631360 also had an error]
[thread 140315668813568 also had an error]
v ~StubRoutines::jlong_disjoint_arraycopy
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
[thread 140315177346816 also had an error]
# An error report file with more information is saved as:
# /export/local/aurora/hs_err_pid28143.log
Segmentation fault (core dumped)