Is there any tutorial on Apache Mahout Naive Bayes classification algorithm? [on hold]

Is there any tutorial on Apache Mahout Naive Bayes classification
algorithm? [on hold]

I'm beginner to Apache Mahout. I could not find any tutorial or
documentation on how to use Mahout version of Naive Bayes algorithm. I
have found this
link(https://cwiki.apache.org/confluence/display/MAHOUT/Twenty+Newsgroups)
explaining how to use naive bayes from the command line? Is there any
documentation or tutorial explaining how to write code to build naive
bayes model and how to use the model to classify for new example data? How
to form the bag of words and supply to the Mahout Naive Bayes algorithm?
Please somebody help me.