// Move to soap:Envelope and verify
if(reader.getEventType()!=XMLStreamConstants.START_ELEMENT)
XMLStreamReaderUtil.nextElementContent(reader);
XMLStreamReaderUtil.verifyReaderState(reader,XMLStreamConstants.START_ELEMENT);
if (SOAP_ENVELOPE.equals(reader.getLocalName()) && !SOAP_NAMESPACE_URI.equals(reader.getNamespaceURI())) {
throw new VersionMismatchException(soapVersion, SOAP_NAMESPACE_URI, reader.getNamespaceURI());
}
XMLStreamReaderUtil.verifyTag(reader, SOAP_NAMESPACE_URI, SOAP_ENVELOPE);
TagInfoset envelopeTag = new TagInfoset(reader);