The standard Apache logj4 log levels plus a custom level for
SUCCESS. For the full list of these log levels and suggested
usage, check the below Details.
OFFFATAL
ERROR
WARN
SUCCESS
INFO
DEBUG
TRACE
List of supported log levels:
OFF No events will be logged
FATAL Severe error that will prevent the application from continuing
ERROR An error in the application, possibly recoverable
WARN An event that might possible lead to an error
SUCCESS An explicit success event above the INFO level that you want to log
INFO An event for informational purposes
DEBUG A general debugging event
TRACE A fine-grained debug message, typically capturing the flow through the application.
https://logging.apache.org/log4j/2.x/javadoc/log4j-api/org/apache/logging/log4j/Level.html, https://logging.apache.org/log4j/2.x/manual/customloglevels.html