Maximum RPM by E.C. Bailey, chapter entitled “Taking the Red Hat Package Manager to the Limit”.
The Java Class Libraries, Second Edition volumes 1 and 2, by Patrick Chan, Rosanna Lee and Douglas Kramer.
The RPM site: http://www.rpm.org/
The Java sources of the above package are available at http://jymengant.ifrance.com/jymengant/Personal/newspersonal/newspersonal.htm.