<dependency>
  <groupId>com.ongres.stringprep</groupId>
  <artifactId>stringprep</artifactId>
  <version>2.1</version>
</dependency>

implementation 'com.ongres.stringprep:stringprep:2.1'

implementation("com.ongres.stringprep:stringprep:2.1")

libraryDependencies += "com.ongres.stringprep" % "stringprep" % "2.1"

@Grapes(
  @Grab(group='com.ongres.stringprep', module='stringprep', version='2.1')
)

<dependency org="com.ongres.stringprep" name="stringprep" rev="2.1" />

[com.ongres.stringprep/stringprep "2.1"]

'com.ongres.stringprep:stringprep:jar:2.1'