rewrite rule doesnt function

I have tried to add the following configuration to the standalone.xml <virtual-server> node:

<virtual-server name="default-host">
<alias name="localhost"/>
<alias name="example.com"/>
<rewrite pattern="^/helloworld(.*)" substitution="/helloworld/test.jsp"/>
</virtual-server>

and I have deployed the helloworld.war, however the rewrite does not work (I know I can deploy war at the root context I just want to test the rewrite).