src/main/resources/archetype-resources/pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>${groupId}</groupId>
    <artifactId>${artifactId}</artifactId>
    <version>${version}</version>
    <packaging>nbm</packaging>

    <name>${artifactId}</name>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <repositories>
        <!--
        Repository hosting NetBeans modules, especially APIs.
        Versions are based on IDE releases, e.g.: RELEASE691
        To create your own repository, use: nbm:populate-repository
        
        If you use Apache NetBeans starting with Apache NetBeans 9.0 
        you can remove the netbeans repository section
        -->
        <repository>
            <id>netbeans</id>
            <name>NetBeans</name>
            <url>http://bits.netbeans.org/nexus/content/groups/netbeans/</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <dependencies>
        <dependency>
            <groupId>org.netbeans.api</groupId>
            <artifactId>org-netbeans-api-annotations-common</artifactId>
            <version>${netbeansVersion}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.netbeans.utilities</groupId>
                <artifactId>nbm-maven-plugin</artifactId>
                <version>4.3</version>
                <extensions>true</extensions>
            </plugin>

            <plugin>
                <!-- NetBeans 6.9+ requires JDK 6, starting NetBeans 7.4 source 1.7 is required   -->
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.1.2</version>
                <configuration>
                    <!-- to have the jar plugin pickup the nbm generated manifest -->
                    <archive>
                        <manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>