<dependency>
  <groupId>de.bottlecaps.rr</groupId>
  <artifactId>rr-webapp</artifactId>
  <version>2.1</version>
  <type>war</type>
</dependency>

implementation 'de.bottlecaps.rr:rr-webapp:2.1'

implementation("de.bottlecaps.rr:rr-webapp:2.1")

libraryDependencies += "de.bottlecaps.rr" % "rr-webapp" % "2.1"

@Grapes(
  @Grab(group='de.bottlecaps.rr', module='rr-webapp', version='2.1')
)

<dependency org="de.bottlecaps.rr" name="rr-webapp" rev="2.1" />

[de.bottlecaps.rr/rr-webapp "2.1"]

'de.bottlecaps.rr:rr-webapp:jar:2.1'