<dependency>
  <groupId>net.sf.flatpack</groupId>
  <artifactId>flatpack</artifactId>
  <version>3.1.1</version>
</dependency>

implementation 'net.sf.flatpack:flatpack:3.1.1'

implementation("net.sf.flatpack:flatpack:3.1.1")

libraryDependencies += "net.sf.flatpack" % "flatpack" % "3.1.1"

@Grapes(
  @Grab(group='net.sf.flatpack', module='flatpack', version='3.1.1')
)

<dependency org="net.sf.flatpack" name="flatpack" rev="3.1.1" />

[net.sf.flatpack/flatpack "3.1.1"]

'net.sf.flatpack:flatpack:jar:3.1.1'