coldfusion 2018 service exits immediately

I have installed cold fusion 2018 on CentOS7, as Server Configuration (Production Profile + Secure Profile) with default Sub-components and servlets, using default install dir, and default Built-In Web Server Port. 

I followed this guide here, installing on a fresh new clean server / instance of linux.

https://www.adobe.com/content/dam/acom/en/products/coldfusion/pdfs/coldfusion-2018-lockdown-guide.pdf

When I got to section 5.4 I could not get the SSH tunnel to work.

When I run the following command:

[root@server ~]# systemctl status cf2018.service -l

 I get the following result:

● cf2018.service - Adobe ColdFusion 2018
   Loaded: loaded (/etc/systemd/system/cf2018.service; enabled; vendor preset: disabled)
   Active: active (exited) since Mon 2019-09-30 10:12:16 HKT; 1 day 4h ago
 Main PID: 2285 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/cf2018.service

Sep 30 10:12:16 server.ewc-asia.com systemd[1]: Started Adobe ColdFusion 2018.
Sep 30 10:12:16 server.ewc-asia.com bash[2285]: Usage:/opt/coldfusion2018/cfusion/bin/sysinit (start|stop|restart|status|wsconfig)

 I can't figure out why the service is "exited".

After a lot of confusion and looking around I tried this:

[root@server bin]# ./findjava.sh
./findjava.sh: line 35: [: 110 2018-10-16 LTS: integer expression expected
../../jre/bin/java is not a supported version of Java. Set JAVA_HOME environment variable to 1.7 or later.

However, it looks like I'm using the correct version:

[root@server jre]# /usr/lib/jvm/jre/bin/java --version
openjdk 11.0.4 2019-07-16 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.4+11-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.4+11-LTS, mixed mode, sharing)

I've tried different versions in /opt/coldfusion2018/cfusion/bin/jvm.config and but was not successful.

Any idea what might be going on, or how I can get more detail?

Thanks