To make it easy for all our codebases, to automatically have all logging abstractions pointing towards log4j2 along with logstash configured, we have bundled together the dependencies via one library. These dependencies look like:
<!-- core libraries -->
org.apache.logging.log4j:log4j-api:2.0.2
org.apache.logging.log4j:log4j-core:2.0.2
com.lmax:disruptor:3.2.1
<!-- commons-logging -->
org.apache.logging.log4j:log4j-jcl:2.0.2
org.apache.logging.log4j:log4j-1.2-api:2.0.2
<!-- slf4j -->
org.slf4j:slf4j-api:1.7.7
<!-- JUL routed through slf4j -->
org.apache.logging.log4j:log4j-slf4j-impl:2.0.2
<!-- override old log4j with an empty jarfile -->
<!-- incase it gets re-introduced transitively -->
log4j:log4j:2-empty
<!-- logstash -->
net.logstash.log4j2:log4j2-logstash-jsonevent-layout:3.0.0-finn-2