Currently the stable builds for Eclipse plug-in for Maven 2 ( maven-eclipse-plugin ) do not support WTP version 2.0. However, the latest snapshot of the Eclipse plug-in does already support also WTP 2.0, and seems to be fairly stable.

To enable the snapshot plug-ins (and WTP 2.0 support) first add this to your project pom.xml:

      <repositories>
        <repository>
          <id>apache.snapshots</id>
          <url>http://people.apache.org/maven-snapshot-repository/</url>
        </repository>
      </repositories>
      <pluginRepositories>
        <pluginRepository>
          <id>apache.snapshots</id>
          <url>http://people.apache.org/maven-snapshot-repository/</url>
        </pluginRepository>
      </pluginRepositories>

After this run the eclipse:eclipse goal with wtpversion-property, e.g.
mvn -Dwtpversion=2.0 eclipse:eclipse.