Issue Summary

Logging is not working in synchrony-proxy - changes in logback.xml have no effect and atlassian-synchrony-proxy.log file is not created in <conf_installation>/logs folder.

This issue occurred after logback-classic-1.2.3.jar and logback-core-1.2.3.jar were upgraded to logback-classic-1.4.5.jar and logback-core-1.4.5.jar.

Steps to Reproduce

1. Enable synchrony proxy in confluence
2. Start Confluence

Expected Results

File atlassian-synchrony-proxy.log is created and has INFO log lines from com.atlassian.synchrony.proxy.lifecycle package:

2023-09-12 07:21:37 INFO  c.a.s.p.lifecycle:14 contextInitialized - Starting Synchrony Proxy
2023-09-12 07:21:38 INFO  c.a.s.p.lifecycle:20 init - Synchrony Proxy is ready to serve 

Actual Results

File atlassian-synchrony-proxy.log is not created

Workaround

Stop Confluence, replace logback-classic-1.4.5.jar and logback-core-1.4.5.jar with logback-classic-1.2.3.jar and logback-core-1.2.3.jar. Start Confluence again.