Not sure if this is a real bug, but at least it is an easy way to crash HS 19 b03 containing CR 6916623 fix:

$ java -XX:ObjectAlignmentInBytes=65536 -version

VM option 'ObjectAlignmentInBytes=65536'
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/virtualspace.cpp:424
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/tmp/jprt/P1/B/234049.et151817/source/src/share/vm/runtime/virtualspace.cpp:424), pid=7945, tid=140098164266768
# assert((_noaccess_prefix != 0) == (UseCompressedOops && _base != NULL && (size_t(_base + _size) > OopEncodingHeapMax) && Universe::narrow_oop_use_implicit_null_checks())) failed: noaccess_prefix should be used only with non zero based compressed oops
#
# JRE version: 6.0_22-b01
# Java VM: Java HotSpot(TM) 64-Bit Server VM (19.0-b06-<...>.hotspot-fastdebug mixed mode linux-amd64 compressed oops)
# An error report file with more information is saved as:
# <...>/hs_err_pid7945.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#
Current thread is 140098164266768
Dumping core ...
Aborted