java.lang.NullPointerException at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264)

Hello All,
We have a Java (with JBOSS as app server) based application with GUI. While generating jasper letters from the application, we are getting exceptions in log. we dont use docker.

**Env Details:-**
openjdk version "1.8.0_282"
OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_282-b08)
OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.282-b08, mixed mode)

# cat /etc/**redhat-release**
Red Hat Enterprise Linux Server release 7.6 (Maipo)

There is a file fontconfig.properties available at $JAVA_HOME/lib, with below two lines in it.
version=1
sequence.allfonts=default

exception
--------------
javax.ejb.EJBException: net.sf.jasperreports.engine.JRRuntimeException: Error initializing graphic environment.
...
Caused by: net.sf.jasperreports.engine.JRRuntimeException: Error initializing graphic environment.
...
Caused by: java.lang.NullPointerException
at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264) [rt.jar:1.8.0_282]

ERROR [net.sf.jasperreports.engine.util.JRStyledTextParser] (default task-19) Error while loading available fonts: java.lang.NullPointerException
at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264) [rt.jar:1.8.0_282]

Reading other threads on github, i found a suggestion to install the fontconfig (sudo yum install fontconfig dejavu-sans-fonts dejavu-serif-fonts ), however this hasn't worked for all.
Could you please suggest what can i do as workaround to get passed this issue.

Regards,
Alok