Consider switching Logback's file logging charset to UTF-8 #44472
Description
Right now, Logback uses Charset.defaultCharset() for file logging. Log4j2 uses UTF-8. I think we should consider using UTF-8 for Logback, too. Charset.defaultCharset() is platform dependent, which could lead to confusing bugs. The Java team (with JEP 400) recognized this is a problem and fixed that in Java 18.
Read #44353 for more background.