Delimiter do not accept pattern {#*#}

In the description of delimiters :
see url : http://maven.apache.org/plugins/maven-resources-plugin/resources-mojo.html
we have :
Set of delimiters for expressions to filter within the resources. These delimiters are specified in the form 'beginToken*endToken'. If no '*' is given, the delimiter is assumed to be the same for start and end.
But when I try to use it with this pattern :

The filtring doesnt work fine.