An instrumented appender for Log4j 1.x.
'io.dropwizard.metrics:metrics-log4j:3.1.2'
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-log4j</artifactId>
<version>3.1.2</version>
</dependency>
<dependency org="io.dropwizard.metrics" name="metrics-log4j" rev="3.1.2"/>
"io.dropwizard.metrics", "metrics-log4j", "3.1.2"