List of Free code Framework Log
Appmon4j a lightweight Java Framework for logging performance metrics.
Log data analysis using Esper (complex event processing framework).
The reliable, generic, fast and flexible logging framework for Java.
Java App Engine > BigQuery log export framework.
Java framework for multicore aware log parsing.
splunk library javalogging
Splunk logging appenders for popular Java Logging frameworks.
Log tailing and parsing framework in Java.