<dependency>
  <groupId>org.specs2</groupId>
  <artifactId>specs2-matcher_2.11</artifactId>
  <version>4.8.1</version>
</dependency>

implementation 'org.specs2:specs2-matcher_2.11:4.8.1'

implementation("org.specs2:specs2-matcher_2.11:4.8.1")

libraryDependencies += "org.specs2" % "specs2-matcher_2.11" % "4.8.1"

@Grapes(
  @Grab(group='org.specs2', module='specs2-matcher_2.11', version='4.8.1')
)

<dependency org="org.specs2" name="specs2-matcher_2.11" rev="4.8.1" />

[org.specs2/specs2-matcher_2.11 "4.8.1"]

'org.specs2:specs2-matcher_2.11:jar:4.8.1'