Warning messages , systemctl status traccar , traccar-linux-arm-6.14.5.zip

Dear All,

Downloaded and installed latest version of traccar server.

https://github.com/traccar/traccar/releases/download/v6.14.5/traccar-linux-arm-6.14.5.zip

Notice some warning messages after installation as follows.

root@traccar:/opt/traccar# systemctl status traccar
● traccar.service - traccar
     Loaded: loaded (/etc/systemd/system/traccar.service; enabled; preset: enabled)
     Active: active (running) since Wed 2026-06-24 20:29:02 +08; 7min ago
 Invocation: b3b1d9cda401437bb6dab0c117798daf
   Main PID: 32164 (java)
      Tasks: 35 (limit: 806)
        CPU: 1min 19.202s
     CGroup: /system.slice/traccar.service
             └─32164 /opt/traccar/jre/bin/java -jar tracker-server.jar conf/traccar.xml

Jun 24 20:29:02 traccar systemd[1]: Started traccar.service - traccar.
Jun 24 20:29:06 traccar traccar[32164]: WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
Jun 24 20:29:06 traccar traccar[32164]: WARNING: sun.misc.Unsafe::staticFieldBase has been called by com.google.inject.internal.aop.HiddenClassDefiner (file>
Jun 24 20:29:06 traccar traccar[32164]: WARNING: Please consider reporting this to the maintainers of class com.google.inject.internal.aop.HiddenClassDefiner
Jun 24 20:29:06 traccar traccar[32164]: WARNING: sun.misc.Unsafe::staticFieldBase will be removed in a future release
Jun 24 20:29:10 traccar traccar[32164]: WARNING: A restricted method in java.lang.System has been called
Jun 24 20:29:10 traccar traccar[32164]: WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/opt/traccar/lib/jn>
Jun 24 20:29:10 traccar traccar[32164]: WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
Jun 24 20:29:10 traccar traccar[32164]: WARNING: Restricted methods will be blocked in a future release unless native access is enabled
Jun 24 20:29:25 traccar traccar[32164]: Database is up to date, no changesets to execute

root@traccar:/opt/traccar#

I had to switch to my custom installed system wide Java "zulu21-ca-arm64" repo and the warning message went away.

root@traccar:/opt/traccar# systemctl status traccar
● traccar.service - traccar
     Loaded: loaded (/etc/systemd/system/traccar.service; enabled; preset: enabled)
     Active: active (running) since Wed 2026-06-24 20:42:37 +08; 1min 45s ago
 Invocation: a7811c0d5e9f4c38ab446bfb246e1529
   Main PID: 32930 (java)
      Tasks: 35 (limit: 806)
        CPU: 1min 50.435s
     CGroup: /system.slice/traccar.service
             └─32930 /usr/lib/jvm/zulu21-ca-arm64/bin/java -jar tracker-server.jar conf/traccar.xml

Jun 24 20:42:37 traccar systemd[1]: Started traccar.service - traccar.
Jun 24 20:43:33 traccar traccar[32930]: Database is up to date, no changesets to execute
root@traccar:/opt/traccar#

Why are you worried about those warnings? They're harmless.