I configured a Maven job and the build doesn't show the javadoc report.

Checking the console output I can see the javadoc is being generated by maven,
but there is no javadoc report available by Hudson.

Here it is an example: http://fgaucho.dyndns.org:8080/hudson/job/arena-
puj/203/console

Is there any other configuration I should do in order to show the project
javadoc? Following the Hudson docs, it should be available automatically if
Maven uses the javadoc goal (what is the case here).

I believed the problem is caused because the maven goal to generate javadocs
changed:

Before Maven 2.x: javadoc:generate (or just javadoc)
After Maven 2.x: javadoc:javadoc

Following the latest maven-javadoc-plugin, This goal 'javadoc:javadoc' should
be used as a Maven report: http://maven.apache.org/plugins/maven-javadoc-
plugin/javadoc-mojo.html