'org.slf4j:slf4j-log4j12:1.6.1'
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.6.1</version>
</dependency>
<dependency org="org.slf4j" name="slf4j-log4j12" rev="1.6.1"/>
"org.slf4j", "slf4j-log4j12", "1.6.1"