<dependency>
  <groupId>net.sf.rubycollect4j</groupId>
  <artifactId>rubycollect4j</artifactId>
  <version>2.0.0</version>
</dependency>

implementation 'net.sf.rubycollect4j:rubycollect4j:2.0.0'

implementation("net.sf.rubycollect4j:rubycollect4j:2.0.0")

libraryDependencies += "net.sf.rubycollect4j" % "rubycollect4j" % "2.0.0"

@Grapes(
  @Grab(group='net.sf.rubycollect4j', module='rubycollect4j', version='2.0.0')
)

<dependency org="net.sf.rubycollect4j" name="rubycollect4j" rev="2.0.0" />

[net.sf.rubycollect4j/rubycollect4j "2.0.0"]

'net.sf.rubycollect4j:rubycollect4j:jar:2.0.0'