Similar to Log4j
Apache Ant
Apache Ant
Apache Derby
Apache Derby
Apache FOP
Formatting Objects Processor
Apache Hadoop
Apache Hadoop
Apache Hive
Apache HiveApache James
Apache James
Apache Kafka
Apache Kafka
Apache Solr
Apache Solr
Apache Tomcat
Apache Tomcat
Alfresco
Alfresco Software
Apache ActiveMQ
Apache ActiveMQApache Avalon
Apache Axis
Apache AxisApache Axis2
Apache Axis2
Apache Batik
Apache BatikApache Commons
Apache CommonsApache Commons Collections
Apache Commons DBUtils
Apache Commons Email
Apache Commons IO
Apache Commons Lang
Apache Commons Math
Apache Cordova
Apache Cordova
Apache Drill
Apache Drill
Apache Geronimo
Apache Geronimo
Apache Harmony
Apache Harmony
Apache HTTP Server
Apache HTTP Server
Apache Mahout
Apache Mahout
