<dependency>
  <groupId>org.jruby.rack</groupId>
  <artifactId>jruby-rack</artifactId>
  <version>0.9</version>
</dependency>

implementation 'org.jruby.rack:jruby-rack:0.9'

implementation("org.jruby.rack:jruby-rack:0.9")

libraryDependencies += "org.jruby.rack" % "jruby-rack" % "0.9"

@Grapes(
  @Grab(group='org.jruby.rack', module='jruby-rack', version='0.9')
)

<dependency org="org.jruby.rack" name="jruby-rack" rev="0.9" />

[org.jruby.rack/jruby-rack "0.9"]

'org.jruby.rack:jruby-rack:jar:0.9'