Helper class to open an HTTP connection to the server redirector and pass
to it HTTP parameters, Cookies and HTTP headers. It enables different
possible implementations of an HTTP connection (ex: using the JDK
HttpURLConnection or using Jakarta HttpClient).
version: $Id: ConnectionHelper.java 238991 2004-05-22 11:34:50Z vmassol $
Connects to the Cactus Redirector using HTTP.
Parameters: theRequest - the request containing all data to pass to theserver redirector. Parameters: theConfiguration - the Cactus configuration the HTTP Connection used to connect to the redirector. exception: Throwable - if an unexpected error occured