<dependency>
  <groupId>io.vertx</groupId>
  <artifactId>testtools</artifactId>
  <version>2.0.3-final</version>
</dependency>

implementation 'io.vertx:testtools:2.0.3-final'

implementation("io.vertx:testtools:2.0.3-final")

libraryDependencies += "io.vertx" % "testtools" % "2.0.3-final"

@Grapes(
  @Grab(group='io.vertx', module='testtools', version='2.0.3-final')
)

<dependency org="io.vertx" name="testtools" rev="2.0.3-final" />

[io.vertx/testtools "2.0.3-final"]

'io.vertx:testtools:jar:2.0.3-final'