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This project employs the logging utility facade SLF4J, using Apache Log4j , accordingly 2.x as its backend. Accordingly, levels of detail can be specified as follows:
OFF: The highest possible rank and is intended to turn off logging.
FATAL: Designates very severe error events that will presumably lead the application to abort.
ERROR: Designates error events that might still allow the application to continue running.
WARN: Designates potentially harmful situations.
INFO: Designates informational messages that highlight the progress of the application at coarse-grained level.
DEBUG: Designates fine-grained informational events that are most useful to debug an application.
TRACE: Designates finer-grained informational events than the DEBUG.
ALL: All levels including custom levels.
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