| org.apache.log4j | The main log4j package. |
| 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.helpers | This package is used internally. |
| 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 | |
| org.apache.log4j.lf5.viewer.categoryexplorer | |
| org.apache.log4j.lf5.viewer.configure | |
| org.apache.log4j.net | Package for remote logging. |
| org.apache.log4j.nt | 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.pattern | Provides classes implementing format specifiers in conversion patterns. |
| 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.xml | XML based components. |
| org.apache.log4j.xml.examples |