<dependency>
  <groupId>org.jruby.extras</groupId>
  <artifactId>jffi</artifactId>
  <version>1.0.7</version>
</dependency>

implementation 'org.jruby.extras:jffi:1.0.7'

implementation("org.jruby.extras:jffi:1.0.7")

libraryDependencies += "org.jruby.extras" % "jffi" % "1.0.7"

@Grapes(
  @Grab(group='org.jruby.extras', module='jffi', version='1.0.7')
)

<dependency org="org.jruby.extras" name="jffi" rev="1.0.7" />

[org.jruby.extras/jffi "1.0.7"]

'org.jruby.extras:jffi:jar:1.0.7'