Getting a continuos warning message when running the docker container using image wso2is:7.0.0.83-alpine-jdk17

[lakshithakasun]

Description

When running the Docker container image wso2is:7.0.0.83-alpine-jdk17 getting the following warning continuously and it appears to be a permission issue.

[2025-01-08 12:59:25,541] [] WARN {java.util.prefs} - Could not lock System prefs. Unix error code 2.
[2025-01-08 12:59:25,555] [] WARN {java.util.prefs} - Couldn't flush system prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.
[2025-01-08 12:59:55,539] [] WARN {java.util.prefs} - Could not lock System prefs. Unix error code 2.
[2025-01-08 12:59:55,545] [] WARN {java.util.prefs} - Couldn't flush system prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.
[2025-01-08 13:00:25,545] [] WARN {java.util.prefs} - Could not lock System prefs. Unix error code 2.
[2025-01-08 13:00:25,565] [] WARN {java.util.prefs} - Couldn't flush system prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.

This can be solved by passing following java options when starting server through the docker-entrypoint.sh file

sh ${WSO2_SERVER_HOME}/bin/wso2server.sh -Djava.util.prefs.systemRoot=/home/wso2carbon/.java -Djava.util.prefs.userRoot=/home/wso2carbon/.java/.userPrefs "$@"

This should be proactively checked in other images as well.

Steps to Reproduce

Execute the following commands

1. docker pull docker.wso2.com/wso2is:7.0.0.83-alpine-jdk17
2. docker run -d --name wso2is -p 9443:9443 docker.wso2.com/wso2is:7.0.0.83-alpine-jdk17
3. docker logs -f wso2is
4. You can observe following,

[2025-01-08 13:03:25,697] [] WARN {java.util.prefs} - Could not lock System prefs. Unix error code 2.
[2025-01-08 13:03:25,756] [] WARN {java.util.prefs} - Couldn't flush system prefs: java.util.prefs.BackingStoreException:

Version

Identity Server 7.0

Environment Details (with versions)

No response