<dependency>
  <groupId>org.apache.archiva.redback</groupId>
  <artifactId>redback-keys-jdo</artifactId>
  <version>2.1</version>
</dependency>

'org.apache.archiva.redback:redback-keys-jdo:jar:2.1'

<dependency org="org.apache.archiva.redback" name="redback-keys-jdo" rev="2.1">
  <artifact name="redback-keys-jdo" type="jar" />
</dependency>

@Grapes(
@Grab(group='org.apache.archiva.redback', module='redback-keys-jdo', version='2.1')
)

compile 'org.apache.archiva.redback:redback-keys-jdo:2.1'

[org.apache.archiva.redback/redback-keys-jdo "2.1"]

libraryDependencies += "org.apache.archiva.redback" %% "redback-keys-jdo" % "2.1"