slf4j
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1.SLF4J API Module83,782 usages

org.slf4j » slf4j-api MIT

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.
Last Release on Feb 25, 2025

2.SLF4J Reload4j Provider1,019 usages

org.slf4j » slf4j-reload4j MIT

SLF4J Reload4j Provider
Last Release on Feb 25, 2025

3.SLF4J Simple Provider18,267 usages

org.slf4j » slf4j-simple MIT

Binding/provider for SLF4J, which outputs all events to System.err. Only messages of level INFO and higher are printed.
Last Release on Feb 25, 2025

4.SLF4J LOG4J 12 Binding Relocated18,448 usages

org.slf4j » slf4j-log4j12 MIT

SLF4J LOG4J-12 relocated to slf4j-reload4j
Last Release on Feb 25, 2025

Relocated → org.slf4j » slf4j-reload4j

5.JCL 1.2 Implemented Over SLF4J10,544 usages

org.slf4j » jcl-over-slf4j Apache

Jakarta/Apache commons logging 1.2 implemented over SLF4J
Last Release on Feb 25, 2025

6.Apache Log4j SLF4J Binding8,968 usages

org.apache.logging.log4j » log4j-slf4j-impl Apache

The Apache Log4j SLF4J API binding to Log4j 2 Core
Last Release on May 8, 2026

Relocated → org.apache.logging.log4j » log4j-slf4j2-impl

7.JUL to SLF4J Bridge4,635 usages

org.slf4j » jul-to-slf4j MIT

Jul-to-slf4j includes a java.util.logging (jul) handler, namely SLF4JBridgeHandler, which routes all incoming jul records to the SLF4j API.
Last Release on Feb 25, 2025

8.Log4j Implemented Over SLF4J4,323 usages

org.slf4j » log4j-over-slf4j Apache

Log4j implemented over SLF4J
Last Release on Feb 25, 2025

9.SLF4J JDK14 Provider3,026 usages

org.slf4j » slf4j-jdk14 MIT

SLF4J JDK14 Provider
Last Release on Feb 25, 2025

10.SLF4J NOP Provider1,881 usages

org.slf4j » slf4j-nop MIT

Binding/provider for NOP, an implementation that silently discards all logging messages.
Last Release on Feb 25, 2025