<dependency>
  <groupId>net.sf.jopt-simple</groupId>
  <artifactId>jopt-simple</artifactId>
  <version>3.1-beta1</version>
</dependency>

implementation 'net.sf.jopt-simple:jopt-simple:3.1-beta1'

implementation("net.sf.jopt-simple:jopt-simple:3.1-beta1")

libraryDependencies += "net.sf.jopt-simple" % "jopt-simple" % "3.1-beta1"

@Grapes(
  @Grab(group='net.sf.jopt-simple', module='jopt-simple', version='3.1-beta1')
)

<dependency org="net.sf.jopt-simple" name="jopt-simple" rev="3.1-beta1" />

[net.sf.jopt-simple/jopt-simple "3.1-beta1"]

'net.sf.jopt-simple:jopt-simple:jar:3.1-beta1'