<dependency>
  <groupId>com.typesafe.akka</groupId>
  <artifactId>akka-actor_2.12</artifactId>
  <version>2.5.7</version>
</dependency>

implementation 'com.typesafe.akka:akka-actor_2.12:2.5.7'

implementation("com.typesafe.akka:akka-actor_2.12:2.5.7")

libraryDependencies += "com.typesafe.akka" % "akka-actor_2.12" % "2.5.7"

@Grapes(
  @Grab(group='com.typesafe.akka', module='akka-actor_2.12', version='2.5.7')
)

<dependency org="com.typesafe.akka" name="akka-actor_2.12" rev="2.5.7" />

[com.typesafe.akka/akka-actor_2.12 "2.5.7"]

'com.typesafe.akka:akka-actor_2.12:jar:2.5.7'