JAX-WS XMLSpine Improvements
----------------------------

                 Key: AXIS2-2026
                 URL: https://issues.apache.org/jira/browse/AXIS2-2026
             Project: Apache Axis 2.0 (Axis2)
          Issue Type: Bug
          Components: jaxws
            Reporter: Rich Scheuerle


XMLSpine is one of  the key objects in the JAX-WS model of the Message.

I have a patch that is a rearchitecture of this class.  
Summary of changes:

   1) The primary purposeof the XMLSpine is a repository of Blocks, where a 
Block is an xml representation backed by a data object (JAXB, String, Source, 
etc.) .  The prior version of XMLSpine stored these Blocks in instance arrays.  
 The new version of the code stores the Blocks directly in the OM tree (using 
OMSourcedElement).  This is a simpler design.  In addition, the new design also 
keeps the OM tree in a consistent state.

   2)  The XMLSpine used OMChildIterator in several places.  This caused 
problems with unnecessary tree expansion.  I made some several changes to the 
code to avoid moving the parser cursor.



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