org.codehaus.mojo:nbm-maven-plugin 2.5

Maven plugin for creating Netbeans Modules. It defines custom lifecycle called "nbm". During packaging, the module's jar artifact will be enhanced with Netbeans specific manifest entries and along with other required files packed into a nbm file, ready for distribution. Additionally the plugin provides agregator goals to create autoupdate centers or module cluster for your module projects.

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>nbm-maven-plugin</artifactId>
    <version>2.5</version>
</plugin>