code: private static String getCommaSeparatedString(Collection<String> coll) {
  
  		StringBuilder buffer = new StringBuilder();
  		for (Iterator<String> eltIterator = coll.iterator(); eltIterator.hasNext();) {
  			String elt = eltIterator.next();
  			buffer.append(elt);
  			if (eltIterator.hasNext()) {
  				buffer.append(COMMA_SEPARATOR);
  			}
  		}
  		return buffer.toString();
  	}
docs: Returns the mapping list
  
  @param bundlePathMapping.getItemPathList()
  the item path list
  @return the item path list