Logback: the generic, reliable, fast and flexible logging library for Java.
'ch.qos.logback:log4j-bridge:0.7.1'
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>log4j-bridge</artifactId>
<version>0.7.1</version>
</dependency>
<dependency org="ch.qos.logback" name="log4j-bridge" rev="0.7.1"/>
"ch.qos.logback", "log4j-bridge", "0.7.1"