<dependency>
  <groupId>checkstyle</groupId>
  <artifactId>checkstyle</artifactId>
  <version>2.2</version>
</dependency>

implementation 'checkstyle:checkstyle:2.2'

implementation("checkstyle:checkstyle:2.2")

libraryDependencies += "checkstyle" % "checkstyle" % "2.2"

@Grapes(
  @Grab(group='checkstyle', module='checkstyle', version='2.2')
)

<dependency org="checkstyle" name="checkstyle" rev="2.2" />

[checkstyle/checkstyle "2.2"]

'checkstyle:checkstyle:jar:2.2'