SOAPHelper only accepts replies with an XML declaration
-------------------------------------------------------

                 Key: COCOON-1883
                 URL: http://issues.apache.org/jira/browse/COCOON-1883
             Project: Cocoon
          Issue Type: Bug
          Components: Blocks: XSP
    Affects Versions: 2.1.9
            Reporter: Fabian Linz
            Priority: Trivial


The SOAPHelper class [1] forces the SOAP-Reply to start with a XML declaration. 
I think this should be removed as the WS-I Soap Binding [2] states that an xml 
declaration is not necessary. So a valid WS-I reply may not work with the 
SOAPHelper at the moment.

Instead of 
            int startOfXML = ret.indexOf("<?xml");
            if (startOfXML == -1) { // No xml?!
                throw new ProcessingException("Invalid response - no xml");
            }
            return new XScriptObjectInlineXML(
                    xscriptManager,
                    ret.substring(startOfXML));

I just use
            return new XScriptObjectInlineXML(
                    xscriptManager,
                    ret);

I do not know why the position of the declaration is used to substring the 
answer. Is this necessary? If so would it be enough to just search for the 
first opening tag?


[1] 
blocks/xsp/java/org/apache/cocoon/components/language/markup/xsp/SOAPHelper.java
[2] 
http://www.ws-i.org/Profiles/SimpleSoapBindingProfile-1.0-2004-08-24.html#XML_Declarations

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