SIGSEV in Java_sun_font_FreetypeFontScaler_getGlyphMetricsNative+0x17

ADDITIONAL SYSTEM INFORMATION :
Ubuntu Linux x64, Java 12-ea+28 or Java 13-ea+4

A DESCRIPTION OF THE PROBLEM :
The latest build JDK 12-ea+28 and JDK 13-ea+4 crash with a SIGSEV when we execute the test-suite of Apache POI. Previous builds of JDK 12 up to 12-ea+20 did not show this issue, it seems to be recent regression

See https://builds.apache.org/view/P/view/POI/job/POI-DSL-1.12/14/ and https://builds.apache.org/view/P/view/POI/job/POI-DSL-1.13/2/ for the CI builds which both triggered this bug.

REGRESSION : Last worked in version 12

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
svn co https://svn.apache.org/repos/asf/poi/trunk/ poi
cd poi
#!/bin/sh

set -e

. setJava12.sh

# requires Ant >= 1.9.5 due to https://bz.apache.org/bugzilla/show_bug.cgi?id=58271
export ANT_HOME=/opt/apache/apache-ant/apache-ant-1.9.7
export PATH=$ANT_HOME/bin:$PATH

export ANT_OPTS="-Xmx1524m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=. --illegal-access=deny"

ant \
    -Duser.language=en \
    -Duser.country=US \
    -Djava9addopens1=--illegal-access=deny \
    -Djava9addopens2=--add-opens=java.base/java.io=ALL-UNNAMED \
    -Djava9addopens3=--add-opens=java.base/java.nio=ALL-UNNAMED \
    -Djava9addopens4=--add-opens=java.base/java.lang=ALL-UNNAMED \
    -Djava9addopens5=--add-opens=java.base/jdk.internal.ref=ALL-UNNAMED \
        -Djava.locale.providers=JRE,CLDR \
        -Dcoverage.enabled=false \
        -Dorg.apache.poi.util.POILogger=org.apache.poi.util.NullLogger \
        -Dhalt.on.test.failure=false \
        test-all

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Test compile and pass fine
ACTUAL -
A segmentation fault is reported by the JVM:

    [junit] #
    [junit] # A fatal error has been detected by the Java Runtime Environment:
    [junit] #
    [junit] # SIGSEGV (0xb) at pc=0x00007fefb67f2ec6, pid=23084, tid=23087
    [junit] #
    [junit] # JRE version: OpenJDK Runtime Environment (12.0+28) (build 12-ea+28)
    [junit] # Java VM: OpenJDK 64-Bit Server VM (12-ea+28, mixed mode, sharing, tiered, compressed oops, g1 gc, linux-amd64)
    [junit] # Problematic frame:
    [junit] # C [libc.so.6+0x15fec6]
    [junit] #
    [junit] # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
    [junit] #
    [junit] # An error report file with more information is saved as:
    [junit] # /home/jenkins/jenkins-slave/workspace/POI-DSL-1.12/hs_err_pid23084.log
    [junit] #
    [junit] # If you would like to submit a bug report, please visit:
    [junit] # http://bugreport.java.com/bugreport/crash.jsp
    [junit] # The crash happened outside the Java Virtual Machine in native code.
    [junit] # See problematic frame for where to report the bug.
    [junit] #

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007fefb67f2ec6, pid=23084, tid=23087
#
# JRE version: OpenJDK Runtime Environment (12.0+28) (build 12-ea+28)
# Java VM: OpenJDK 64-Bit Server VM (12-ea+28, mixed mode, sharing, tiered, compressed oops, g1 gc, linux-amd64)
# Problematic frame:
# C [libc.so.6+0x15fec6]
#
# No core dump will be written. 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
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#


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https://svn.apache.org/repos/asf/poi/trunk/
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FREQUENCY : always