maven build of JRuby 1.6.3 fails on Linux Fedora 15

$ cd jruby-1.6.3/
$ mvn clean install
ends up with:
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Failed to resolve artifact.

Missing:
----------
1) jline:jline:jar:1.0

  Try downloading the file manually from the project website.

  Then, install it using the command: 
      mvn install:install-file -DgroupId=jline -DartifactId=jline -Dversion=1.0 -Dpackaging=jar -Dfile=/path/to/file

  Alternatively, if you host your own repository you can deploy the file there: 
      mvn deploy:deploy-file -DgroupId=jline -DartifactId=jline -Dversion=1.0 -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]

  Path to dependency: 
        1) org.jruby:jruby:jar:1.6.3
        2) jline:jline:jar:1.0

----------
1 required artifact is missing.

for artifact: 
  org.jruby:jruby:jar:1.6.3

from the specified remote repositories:
  central (http://repo1.maven.org/maven2),
  __jpp_pom_repo__ (file:///usr/share/maven-poms),
  __jpp_repo2__ (file:///usr/share/maven/repository),
  __jpp_repo__ (file:///usr/share/maven2/repository)



[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 minute 30 seconds
[INFO] Finished at: Sat Jul 30 15:08:51 CEST 2011
[INFO] Final Memory: 21M/107M
[INFO] ------------------------------------------------------------------------