Maven2 struts archtype error -- documentation in http://struts.apache.org/2.x/docs/struts-2-blank-archetype.html

The command

$ mvn archetype:generate -B \
-DgroupId=tutorial \
-DartifactId=tutorial \
-DarchetypeGroupId=org.apache.struts \

-DarchetypeArtifactId=struts2-archetype-blank \
-DarchetypeVersion=2.1.6

mentioned in http://struts.apache.org/2.x/docs/struts-2-blank-archetype.html

gives the following error:

[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] The desired archetype does not exist (org.apache.struts:struts2-archetype-blank:2.1.6)

I use

Maven version: 2.0.8

and

java version "1.5.0_15"

Thanks in advance

Srimal.