code: boolean needToCheckExclude()
    {
      if (null == m_excludeResultPrefixes && null == getPrefixTable()
                  && m_ExtensionElementURIs==null     // JJK Bugzilla 1133
                  )
        return false;
      else
      {
  
        // Create a new prefix table if one has not already been created.
        if (null == getPrefixTable())
          setPrefixTable(new java.util.ArrayList());
  
        return true;
      }
    }
docs: Return whether we need to check namespace prefixes
  against the exclude result prefixes or extensions lists.
  Note that this will create a new prefix table if one
  has not been created already.
  
  NEEDSDOC ($objectName$) @return