GELF implementation in Java and log4j appender without any dependencies.
'org.graylog2:gelfj:1.1.13'
<dependency>
<groupId>org.graylog2</groupId>
<artifactId>gelfj</artifactId>
<version>1.1.13</version>
</dependency>
<dependency org="org.graylog2" name="gelfj" rev="1.1.13"/>
"org.graylog2", "gelfj", "1.1.13"