src/main/resources/META-INF/maven/archetype-metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<archetype-descriptor xsi:schemaLocation="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0 http://maven.apache.org/xsd/archetype-descriptor-1.0.0.xsd" name="instamo"
    xmlns="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

  <requiredProperties>
    <requiredProperty key="groupId">
      <defaultValue>org.apache.accumulo.instamo</defaultValue>
    </requiredProperty>
    <requiredProperty key="artifactId">
      <defaultValue>instamo-example</defaultValue>
    </requiredProperty>
    <requiredProperty key="version">
      <defaultValue>1.0-SNAPSHOT</defaultValue>
    </requiredProperty>
    <requiredProperty key="package">
      <defaultValue>instamo.example</defaultValue>
    </requiredProperty>
  </requiredProperties>

  <fileSets>
    <fileSet filtered="true" packaged="true" encoding="UTF-8">
      <directory>src/main/java</directory>
      <includes>
        <include>**/*.java</include>
      </includes>
    </fileSet>
    <fileSet filtered="true" encoding="UTF-8">
      <directory>src/main/resources</directory>
      <includes>
        <include>**/*.properties</include>
      </includes>
    </fileSet>
    <fileSet filtered="true" packaged="true"  encoding="UTF-8">
      <directory>src/test/java</directory>
      <includes>
        <include>**/*.java</include>
      </includes>
    </fileSet>
    <fileSet encoding="UTF-8">
      <directory>.settings</directory>
      <includes>
        <include>**/*.prefs</include>
      </includes>
    </fileSet>
    <fileSet filtered="true" encoding="UTF-8">
      <directory></directory>
      <includes>
        <include>.classpath</include>
        <include>.project</include>
      </includes>
    </fileSet>
    <fileSet filtered="true" encoding="UTF-8">
      <directory></directory>
      <includes>
        <include>README.md</include>
      </includes>
    </fileSet>
  </fileSets>
</archetype-descriptor>