API for SLF4J (The Simple Logging Facade for Java) which serves as a simple facade or abstraction for various logging frameworks, allowing the end user to plug in the desired logging framework at deployment time.

SLF4J LOG4J-12 relocated to slf4j-reload4j

JCL 1.2 implemented over SLF4J

Binding/provider for SLF4J, which outputs all events to System.err. Only messages of level INFO and higher are printed.

The Apache Log4j SLF4J API binding to Log4j 2 Core

Log4j implemented over SLF4J

Jul-to-slf4j includes a java.util.logging (jul) handler, namely SLF4JBridgeHandler, which routes all incoming jul records to the SLF4j API.

SLF4J JDK14 Binding

Binding/provider for NOP, an implementation that silently discards all logging messages.

Akka is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.