Logging package for printing log output to different local and remote destinations. Selection and filtering of log events at runtime. [Open Source, APL]

Log4J compatible for logging messages to database. [Open Source, APL]

Offers support on log4j as well as information concerning a book on this topic.

A Eclipse plugin which helps use logger easily in Java Projects. It's not bound to any special logging framework, but can used with Log4j, Commons Logging, or custom logger.

This API Conforms to the Logging API in JDK1.4, but is available for pre-1.4 JDKs.

An application for visual viewing and filtering of log4j events. [Open Source, GPL]

A logging class library with runtime configurable formatting and event filtering. [Open Source, MPL]

Framework for logging in Java. [Open source]

Java based syslogd client and server implementation. [Open Source, GPL]

Converts arbitrary Java objects into strings for logging. Configured via a properties file similar to log4j.properties. [Open Source, APL]