<dependency>
  <groupId>net.i2p</groupId>
  <artifactId>router</artifactId>
  <version>2.5.1</version>
</dependency>

implementation 'net.i2p:router:2.5.1'

implementation("net.i2p:router:2.5.1")

libraryDependencies += "net.i2p" % "router" % "2.5.1"

@Grapes(
  @Grab(group='net.i2p', module='router', version='2.5.1')
)

<dependency org="net.i2p" name="router" rev="2.5.1" />

[net.i2p/router "2.5.1"]

'net.i2p:router:jar:2.5.1'