'io.vertx:lang-groovy:2.0.0-beta4'
<dependency>
<groupId>io.vertx</groupId>
<artifactId>lang-groovy</artifactId>
<version>2.0.0-beta4</version>
</dependency>
<dependency org="io.vertx" name="lang-groovy" rev="2.0.0-beta4"/>
"io.vertx", "lang-groovy", "2.0.0-beta4"