See http://www.slf4j.org/ Javadocs for the NOPLogger are available at http://www.slf4j.org/api/org/slf4j/impl/JDK14Logger.html
'org.slf4j:slf4j-jdk14:1.0-beta9'
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jdk14</artifactId>
<version>1.0-beta9</version>
</dependency>
<dependency org="org.slf4j" name="slf4j-jdk14" rev="1.0-beta9"/>
"org.slf4j", "slf4j-jdk14", "1.0-beta9"