Annotation-triggered method call logging for your debug builds.
Simple Logging Facade for Java
The reliable, generic, fast and flexible logging framework for Java.
Graylog Extended Log Format (GELF) implementation in Java for all major logging frameworks: log4j, log4j2, java.util.logging, logback, JBossAS7 and WildFly 8-12
An extensible Java library for HTTP request and response logging
A high performance data logging and graphing system for time series data.
Call tracing and log correlation in distributed systems