Netbackup 8.X java console does not start

Upon launching the Netbackup 8.X java console (jnbSA), the following error message is displayed:

java.lang.UnsatisfiedLinkError: /usr/openv/java/jre/lib/amd64/ cannot open shared object file: No such file or directory

3 X.Org X11 libXext runtime library are missing.

On a Red Hat 7 system run following commands:
yum install libXext.x86_64
yum install libXrender.x86_64
yum install libXtst.x86_64