<dependency>
  <groupId>org.hamcrest</groupId>
  <artifactId>hamcrest-library</artifactId>
  <version>2.1-rc3</version>
</dependency>

implementation 'org.hamcrest:hamcrest-library:2.1-rc3'

implementation("org.hamcrest:hamcrest-library:2.1-rc3")

libraryDependencies += "org.hamcrest" % "hamcrest-library" % "2.1-rc3"

@Grapes(
  @Grab(group='org.hamcrest', module='hamcrest-library', version='2.1-rc3')
)

<dependency org="org.hamcrest" name="hamcrest-library" rev="2.1-rc3" />

[org.hamcrest/hamcrest-library "2.1-rc3"]

'org.hamcrest:hamcrest-library:jar:2.1-rc3'