Is not official yet,

but this morning -DarchetypeVersion=1.0.0 works!

Enjoy:


mvn archetype:create -DarchetypeGroupId=org.apache.cocoon -DarchetypeArtifactId=cocoon-22-archetype-block -DarchetypeVersion=1.0.0 -DgroupId=com.mycompany -DartifactId=myBlock1