Demoiselle Appletexecute error in manual

Question

In the Demoiselle documentation of the link: http://demoiselle.sourceforge.net/docs/components/certificate/reference/2.0.0/html_single/#applet-configuracao

To create the example applet, add the dependency below to the project:

<dependency>
    <groupId>br.gov.frameworkdemoiselle.component</groupId>
    <artifactId>demoiselle-certificate-signer</artifactId>
    <version>2.0.0</version>
</dependency>

And after that extend the class: Abstractappletexecute. But the class is not found in the pacore, not even the package to which it belongs:

br.gov.frameworkdemoiselle.certificate.applet.action

Has there been any change in the way to create the applet? Any use it?