| org.apache.commons.logging.impl | Concrete implementations of commons-logging wrapper APIs. |
| org.apache.log4j | An rather minimal but sufficient implementation redirecting all calls to a log4j logger to a logback logger. |
| org.apache.log4j.chainsaw | Chainsaw is a GUI log viewer and filter for the log4j package. |
| org.apache.log4j.config | Package used in getting/setting component properties. |
| org.apache.log4j.gui | |
| org.apache.log4j.gui.examples | |
| org.apache.log4j.helpers | |
| org.apache.log4j.jdbc | The JDBCAppender provides for sending log events to a database. |
| org.apache.log4j.jmx | This package lets you manage log4j settings using JMX. |
| org.apache.log4j.lf5 | |
| org.apache.log4j.lf5.util | |
| org.apache.log4j.lf5.viewer | This version of LogFactor5 is not completely integrated with log4j. |
| org.apache.log4j.lf5.viewer.categoryexplorer | |
| org.apache.log4j.lf5.viewer.configure | |
| org.apache.log4j.net | |
| org.apache.log4j.net.test | Package for remote logging. |
| org.apache.log4j.nt | Package for NT event logging. |
| org.apache.log4j.nt.test | Package for NT event logging. |
| org.apache.log4j.or | ObjectRenders are resposible for rendering messages depending on their class type. |
| org.apache.log4j.or.jms | This package contains the MessageRenderer which renders objects of type javax.jms.Message . |
| org.apache.log4j.or.sax | This package contains the AttributesRenderer which renders object of class org.xml.sax.Attributes . |
| org.apache.log4j.performance | Package to measure the performance of the different log4j components. |
| org.apache.log4j.spi | Contains part of the System Programming Interface (SPI) needed to extend log4j. |
| org.apache.log4j.varia | Contains various appenders, filters and other odds and ends. |
| org.apache.log4j.varia.test | Contains various appenders, filters and other odds and ends. |
| org.apache.log4j.xml | The main log4j package. |
| org.apache.log4j.xml.examples | |
| org.apache.log4j.xml.test | XML based components. |
| org.slf4j | Core logging interfaces. |
| org.slf4j.agent | "-javaagent" routines for SLF4J. The "-javaagent" flag provided in Java 5+ allows for writing agents in Java, which previously was possible in native code only. |
| org.slf4j.bridge | Bridge/route all JUL log records to the SLF4J API. |
| org.slf4j.ext | SLF4J API extensions |
| org.slf4j.helpers | Helper classes. |
| org.slf4j.impl | Implementations of core logging interfaces defined in the org.slf4j package. |
| org.slf4j.instrumentation | Java instrumentation routines for SLF4J. Byte code instrumentation is an way to change behaviour of java classes at load time . |
| org.slf4j.migrator | |
| org.slf4j.migrator.helper | |
| org.slf4j.migrator.internal | |
| org.slf4j.migrator.line | |
| org.slf4j.profiler | Poor man's profiler API |
| org.slf4j.spi | Classes and interfaces which are internal to SLF4J. |