In particular this includes all subpackages. Despite the element name one can also only expose individual classes of a particular package by adding its binary name as value.
          ]]></description>
        </field>
        <field>
          <name>exportedArtifacts</name>
          <version>1.0.0</version>
          <association>

        // but to create those, proper filtering should happen via Type properties.
    }

    @Override
    public void addHandlers(Map<String, ArtifactHandler> handlers) {
        throw new UnsupportedOperationException("Adding handlers programmatically is not supported anymore");
    }

    @Deprecated
    public Set<String> getHandlerTypes() {