'mx4j:mx4j-impl:2.1.1'
<dependency> <groupId>mx4j</groupId> <artifactId>mx4j-impl</artifactId> <version>2.1.1</version> </dependency>
<dependency org="mx4j" name="mx4j-impl" rev="2.1.1"/>
"mx4j", "mx4j-impl", "2.1.1"