In drools-docs, with
   mvn clean install
I get (after some warnings):

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Drools :: Documentation ........................... SUCCESS [0.707s]
[INFO] Drools :: Documentation :: Drools :: Introduction . FAILURE [3.696s]
[INFO] Drools :: Documentation :: Drools :: Expert ....... SKIPPED
[INFO] Drools :: Documentation :: Drools :: Fusion ....... SKIPPED
[INFO] Drools :: Documentation :: Drools :: Guvnor ....... SKIPPED
[INFO] Drools :: Documentation :: Drools :: Planner ...... SKIPPED
[INFO] Drools :: Documentation :: Drools :: Integration .. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7.882s
[INFO] Finished at: Sat Jan 01 21:44:28 CET 2011
[INFO] Final Memory: 9M/79M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.jboss.maven.plugins:maven-jdocbook-plugin:2.2.3:resources (default-resources) on project drools-docs-introduction: Unexpected problem: Unable to locate artifact [org.eclipse.core:runtime:jar:3.4.0]: Failure to find org.eclipse.core:runtime:jar:3.4.0 in https://repository.jboss.org/nexus/content/groups/public/ was cached in the local repository, resolution will not be reattempted until the update interval of jboss-public-repository-group has elapsed or updates are forced

Any idea how to get around this, please?
-W