<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-mongodb2</artifactId>
  <version>2.12.4</version>
</dependency>

'org.apache.logging.log4j:log4j-mongodb2:jar:2.12.4'

<dependency org="org.apache.logging.log4j" name="log4j-mongodb2" rev="2.12.4">
  <artifact name="log4j-mongodb2" type="jar" />
</dependency>

@Grapes(
@Grab(group='org.apache.logging.log4j', module='log4j-mongodb2', version='2.12.4')
)

compile 'org.apache.logging.log4j:log4j-mongodb2:2.12.4'

libraryDependencies += "org.apache.logging.log4j" % "log4j-mongodb2" % "2.12.4"

[org.apache.logging.log4j/log4j-mongodb2 "2.12.4"]