OH 4 not starting

Setup, Configuration and Use Installation
1

Dear Community,

I am running Opnhab on an Ubuntu server, i recently did an updagrade on Openhab to version 4 using apt-get update and then apt-get upgrade (sorry i don’t know a lot about linux) and now openhab won’t start
Can someone please point me in the right direction on what to do because i have no idea?

root@openhab:/home/adi# openhab-cli info

Version:     4.0.0 (Build)

User:        openhab (Active Process 2030)
User Groups: openhab tty dialout audio

Directories: Folder Name      | Path                        | User:Group
             -----------      | ----                        | ----------
             OPENHAB_HOME     | /usr/share/openhab          | openhab:openhab
             OPENHAB_RUNTIME  | /usr/share/openhab/runtime  | openhab:openhab
             OPENHAB_USERDATA | /var/lib/openhab            | openhab:openhab
             OPENHAB_CONF     | /etc/openhab                | openhab:openhab
             OPENHAB_LOGDIR   | /var/log/openhab            | openhab:openhab

URLs:        http://192.168.1.159:8080
             https://192.168.1.159:8443

root@openhab:/home/adi# openhab-cli showlogs

==> /var/log/openhab/audit.log <==

==> /var/log/openhab/events.log <==

==> /var/log/openhab/openhab.log <==
        at org.apache.felix.resolver.Candidates$MissingRequirementError.toException(Candidates.java:1341) ~[org.eclipse.osgi-3.18.0.jar:?]
        at org.apache.felix.resolver.Candidates$MissingRequirementError.toException(Candidates.java:1341) ~[org.eclipse.osgi-3.18.0.jar:?]
        at org.apache.felix.resolver.Candidates$MissingRequirementError.toException(Candidates.java:1341) ~[org.eclipse.osgi-3.18.0.jar:?]
        ... 12 more
Caused by: org.apache.felix.resolver.reason.ReasonException: Unable to resolve org.openhab.core/4.0.0: missing requirement [org.openhab.core/4.0.0] osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=17))"
        at org.apache.felix.resolver.Candidates$MissingRequirementError.toException(Candidates.java:1341) ~[org.eclipse.osgi-3.18.0.jar:?]
        at org.apache.felix.resolver.Candidates$MissingRequirementError.toException(Candidates.java:1341) ~[org.eclipse.osgi-3.18.0.jar:?]
        at org.apache.felix.resolver.Candidates$MissingRequirementError.toException(Candidates.java:1341) ~[org.eclipse.osgi-3.18.0.jar:?]
        at org.apache.felix.resolver.Candidates$MissingRequirementError.toException(Candidates.java:1341) ~[org.eclipse.osgi-3.18.0.jar:?]
        ... 12 more
2

Wrong Java version ? openHAB 4 needs Java 17 !

3

You can try this on your Ubuntu host:

sudo apt-get update
sudo apt-get upgrade

sudo apt install openjdk-17-jdk openjdk-17-jre

and afterwards try this:

java -version

in my case it returns:

openjdk version "17.0.8" 2023-07-18
OpenJDK Runtime Environment (build 17.0.8+7-Ubuntu-120.04.2)
OpenJDK 64-Bit Server VM (build 17.0.8+7-Ubuntu-120.04.2, mixed mode, sharing)

If you see something similar then your openHab 4.0.x should start again.
Hope this helps.

4

Thanks guys! I had java 11 !