The Simple Logging Facade for Java or (SLF4J) is intended to serve as a simple facade for various logging APIs allowing to the end-user to plug in the desired implementation at deployment time. SLF4J also supports a bridging legacy APIs as well as a source code migration tool. SLF4J API offers an advanced abstraction of various logging systems, including JDK 1.4 logging, log4j and logback. Features include parameterized logging and MDC support.

WWW: https://www.slf4j.org/
