Description
When ReadHeaderInterceptor process the follow inbound soap message , DOMUtils throws NPE for the null namespace "Header" element:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:foo="http://cxf.apache.org/foo"
xmlns:bar="http://cxf.apache.org/bar">
<soapenv:Header>
<foo:myheader>
<Header>
<bar:type>mytype</head:type>
</Header>
</foo:myheader>
</soapenv:Header>
A NPE guard is needed.