When using a SoapUI call with Javelin, the WebService call through Javelin fails with the error message: Object reference not set to an instance of an Object. I am also seeing the error message: The ‘Content-Type’ header must be modified using the appropriate property or method. Parameter name: name.
SoapAction field is being passed as "" (null). The wsdl of the service has the action defined as "" (null). Other headers like user-agent, content-type, etc. are being passed as well. The Javelin service call fails, however, SoapUI seems to get the response for the service successfully with same setup.
1. Change all header parameters to In parameters instead of In/Out.
2. Remove Content-Type, UserAgent, ContentLength (it is auto calculated), and ConnectionType (default is KeepAlive) from headers.
3. Set Content-Type and UserAgent using the Properties window.
If you experience any further issues, please open a support case by going to https://support.broadcom.com