org.apache.log4j
org.apache.log4j.extras
org.apache.log4j.filter
org.apache.log4j.helpers
org.apache.log4j.pattern
org.apache.log4j.rolling
org.apache.log4j.rolling.helper
org.apache.log4j.rule
org.apache.log4j.spi
org.apache.log4j.varia
org.apache.log4j.xml