[GROOVY] parameters

[olivier demah]

Hi,
With XSP ; i usually do
String action             = parameters.getParameter("action","");
String rub_id[]           = request.getParameterValues("rub_id[]");
to get parameters from the sitemap or an array from a previously form i 
filled ;

how can i do the same with Groovy ?
because currently for those 2 lines i get the following errors :
-*-*-*-*-*-
BSFException in ScriptGenerator.generate()
org.apache.cocoon.ProcessingException: BSFException in 
ScriptGenerator.generate(): org.apache.bsf.BSFException: exception from 
Groovy: java.lang.NullPointerException: Cannot invoke method: 
getParameter on null object

-*-*-*-*-*-
regards.
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