Cannot start Openhab 3.1 Synology

I have been running Openhab 2.5 on a Synology Diskstation (DSM 6.2). I recently decided to upgrade to Openhab 3.1 given the iAqualink connection issue with the 2.5 binding (due to changes in how iAqualink is accessed via the web). I completed the instructions for installing Java 11 and creating the SPK package. The installation proceeds successfully, but Openhab will not start. Unfortunately, my logs are not very helpful. I have pasted below the contents of the openHAB-install.log file:

#### S T A R T  -  o p e n H A B  S P K ####
2021-07-10:15:00:05

Set instance variables...
  public:    false
  smarthome: false
  home:      true
  TMPFS:     false
  Z-Wave:    true
  port:    8080
  port:    8443
  tmp:    /volume1/@tmp
  share:  /var/services/homes
  oh:     /var/services/homes/openhab
  backup: /volume1/@appstore/openHAB-backup-202107
done
User that exec the Installation
root
Start postinst...
  Create 'openhab' daemon user
  Install new version
    Extract openhab-3.1.0.zip
    Move files to /volume1/@appstore/openHAB
No TMPFS Install needed
  Create conf/addon/userdata folders for home dir
    Move conf to /var/services/homes/openhab/conf and create conf link
    Move addons to /var/services/homes/openhab/addons and create addons link
    Move userdata to /var/services/homes/openhab/userdata and create userdata link
  Restore userdata to /volume1/@appstore/openHAB
  Restore configuration files to /var/services/homes/openhab
  Fix permissions
done
copy Startupscript for z-wave binding. Then start it

and the openHAB-start_stop.log file:

Stop service.
  openHAB is not running
done.
Start service
  call start.sh.
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  wait_for_status: 0
  PID file created.
done.

The openhab.log file is empty. I am using Java 11 - installed per the Readme.md instructions in the Openhab 3.1 spk package:

# openHAB Synology DiskStation Install Package

This project build a Synology DiskStation SPK install package for [openHAB](https://www.openhab.org) (Home Automation Server).

Comments, suggestions and contributions are welcome!

## Create SPK

Run as followed:

OPENHAB_VERSION=3.1.0 ./build.sh

Install .spk via Synology Package manager.


## Installation script behaviour

The Current version of installer `3.1.0` checks most stable recent version of OpenHAB and installs it during the installation procedure.

You need Java 11 to be able to run openHAB >= 3.1.0, so please download AdoptOpenJDK for [arm32](https://github.com/AdoptOpenJDK/openjdk11-binaries/releases/download/jdk-11.0.9.1%2B1/OpenJDK11U-jdk_aarch64_linux_hotspot_11.0.9.1_1.tar.gz) because Oracle is not offering 32bit compatible package.
Prepare a directory for your package like: `/var/packages/Java11`
Edit `/etc/profile` to update `JAVA_HOME properly`

#PATH=$PATH:/var/packages/Java8/target/j2sdk-image/bin # Synology Java runtime enviroment
PATH=$PATH:/var/packages/Java11/bin # Synology Java runtime enviroment
JAVA_HOME=/var/packages/Java11 # Synology Java runtime enviroment
CLASSPATH=.:/var/packages/Java11/lib # Synology Java runtime enviroment


Reboot your device or invoke following command ` . /etc/profile` and restart OpenHAB 

Enjoy your OpenHAB3

## Download

Download SPK package from [![Github Releases](https://img.shields.io/badge/download-releases-blue.svg)](https://github.com/openhab/openhab-syno-spk/releases) [![Github All Releases](https://img.shields.io/github/downloads/openhab/openhab-syno-spk/total.svg?maxAge=2592000)](http://www.somsubhra.com/github-release-stats/?username=openhab&repository=openhab-syno-spk)

Any help you can provide would be very much appreciated.

-Mark

All-

Problem solved. I was using the wrong installation of Java11. For anyone else using Synology, if you have a DS218+ or similar unit, use the Azul version of Java at the following link:

-Mark

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