'org.slf4j:slf4j-nop:1.0-beta4'
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-nop</artifactId>
<version>1.0-beta4</version>
</dependency>
<dependency org="org.slf4j" name="slf4j-nop" rev="1.0-beta4"/>
"org.slf4j", "slf4j-nop", "1.0-beta4"