Getting parameters from URL: use of Special Chars

Question

I'm unable to retrieve the Special Chars from URL parameters.  Does someone have an idea where to look for?
Examples where no Special Chars is retrieved :
...App?param=Aménagement
...App?param=Am<é>nagement
...App?param=Am%E9nagement
I'm using this code :
          IWDProtocolAdapter protocolAdapter =
               WDProtocolAdapter.getProtocolAdapter();
          IWDRequest request = protocolAdapter.getRequestObject();
                                String param = request.getParameter("param");
Thanks!

Answer 1

okay, So if I use :
...App?param=Am%E9+nagement
How would you then integrate URLDecoder.decode in the following code?
IWDProtocolAdapter protocolAdapter =
     WDProtocolAdapter.getProtocolAdapter();
IWDRequest request = protocolAdapter.getRequestObject();
String param = request.getParameter("param");