Hudson understands PMD
analysis report XML format. When this option is configured and your
build runs the maven goal pmd:pmd
then Hudson provides
useful information about analysis results, such as historical result
trend, module and package statistics, web UI for viewing analysis
reports and warnings, and so on.
This plug-in is not invoked for failed builds, it is only called for stable or unstable builds (i.e., a build with failed tests).