JavaNCSS has been moved on August 2008 to Codehaus for a shared source code repository. There is also a bug tracking tool.
JavaNCSS can actually be built using Ant (ant all) or Maven (mvn package).
JavaNCSS site is built with Maven: mvn site.
To deploy JavaNCSS site or artifact (either SNAPSHOT or release), you'll need to have your Codehaus credentials defined in ~/.m2/settings.xml for codehaus.org server:
<settings>
  <servers>
    <server>
      <id>codehaus.org</id>
      <username>your username</username>
      <password>your password</password>
    </server>
  </servers>
</settings>
Note that starting with Maven 2.1.0, password can be stored encrypted: see the encryption guide on Maven site
JavaNCSS pom.xml is actually configured to deploy the site on javancss.codehaus.org: see distributionManagement/site section. The site can be deployed at any time with mvn site-deploy command. http://www.kclee.de/clemens/java/javancss/ can only be deployed by Clemens.
JavaNCSS SNAPSHOTs can be deployed on Codehaus Snapshot repository with mvn deploy command.
JavaNCSS release is automated with Maven release plugin. It has 3 steps:
The release is deployed on Codehaus main repository, which is sync'ed once a day on Maven Central repository. Note that as soon as a release has been sync'ed to Maven Central repository, you can't change anything: any change on Codehaus main repository will be ignored by Maven Central repository.