1. Version of JNA and related jars
   JNA 4.5.1

2. Version and vendor of the java virtual machine
   Oracle JDK 1.8.0_171_x64

3. Operating system
   Linux 4.9.0-6-amd64 Initial documentation in markdown format. #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) x86_64 GNU/Linux

4. System architecture (CPU type, bitness of the JVM)
   Oracle VM

5. Complete description of the problem
   The call of the callback throws a SIGSEGV exception and the JVM crashes. The command was sent properly to the device (acoustic feedback). The same code is working with Linux32 and Win64.

6. Steps to reproduce
   My project.

'#
'# A fatal error has been detected by the Java Runtime Environment:
'#
'# SIGSEGV (0xb) at pc=0x00007fe219622459, pid=21633, tid=0x00007fe21805c700
'#
'# JRE version: Java(TM) SE Runtime Environment (8.0_171-b11) (build 1.8.0_171-b11)
'# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.171-b11 mixed mode linux-amd64 compressed oops)
'# Problematic frame:
'# C [jna1739597464905679499.tmp+0xe459]
'#
'# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
'#
'# If you would like to submit a bug report, please visit:
'# http://bugreport.java.com/bugreport/crash.jsp
'#

hs_err_pid21633.log