I am updating to say that in release 6.9, in my case, it is working again.
pi@raspberrypi:~ $ docker run --rm -it --entrypoint sh traccar/traccar:6.9-alpine
/opt/traccar # /opt/traccar/jre/bin/java -version
openjdk version "21.0.8" 2025-07-15 LTS
OpenJDK Runtime Environment Temurin-21.0.8+9 (build 21.0.8+9-LTS)
OpenJDK 64-Bit Server VM Temurin-21.0.8+9 (build 21.0.8+9-LTS, mixed mode)
/opt/traccar # /opt/traccar/jre/bin/java -Xms256m -Xmx256m -Djava.net.preferIPv4Stack=true -jar tracker-server.jar conf/traccar.xml
Running Changeset: changelog-4.0-clean::changelog-4.0-clean::author
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UPDATE SUMMARY
Run: 28
Previously run: 0
Filtered out: 0
-------------------------------
Total change sets: 28
Liquibase: Update has been successful. Rows affected: 1
Thank you.
Just to highlight that latest Traccar Server 6.9.0 still inherit the same problem with bindled Java version 21.0.7 with Traccar Server setup files.
Latest Traccar Server 6.9.0 still inherit the same problem with service unable to start with bundled Java version 21.0.7 which comes with Traccar Server setup files. I have to upgrade to Java version 21.0.8 for Traccar Server service to run properly for the moment until bugs fixes.
I am updating to say that in release 6.9, in my case, it is working again.
Thank you.