Change Soap Request Response Header : java.lang.UnsupportedOperationException / javax.xml.ws.soap.SOAPFaultException: Fault string, and possibly fault code, not set

Removed

While testing a web service, I have encountred this error:

javax.xml.ws.soap.SOAPFaultException: Fault string, and possibly fault code, not set
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:146)
...
Caused by: java.lang.UnsupportedOperationException
at java.util.AbstractMap.put(AbstractMap.java:186)
at org.apache.cxf.binding.soap.interceptor.SoapPreProtocolOutInterceptor.setSoapAction(SoapPreProtocolOutInterceptor.java:120)
at org.apache.cxf.binding.soap.interceptor.SoapPreProtocolOutInterceptor.handleMessage(SoapPreProtocolOutInterceptor.java:62)
at org.apache.cxf.binding.soap.interceptor.SoapPreProtocolOutInterceptor.handleMessage(SoapPreProtocolOutInterceptor.java:46)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:255)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:516)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:313)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:265)
at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:73)
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:124)


In fact, I have a client web service code trying to add a SOAP header to a request before calling the Web service.
The problem comes from this part:

BindingProvider bp = (BindingProvider) webServicePort;
bp.getRequestContext().put(MessageContext.HTTP_REQUEST_HEADERS,
Collections.singletonMap("Cookie", Collections
.singletonList(yourCookieString));

In fact Collections.singletonMap() is used to get an immutable map which cause a UnsupportedOperationException in the getRequestContext().put() method.
Thanks to Ridwan Nizam, we have changed the code :

BindingProvider bp= (BindingProvider) webServicePort;
Map<String, List<String>> singletonMap = new HashMap<String, List<String>>() singletonMap.put("Cookie", Collections.singletonList(yourCookieString));
bp.getRequestContext().put(MessageContext.HTTP_REQUEST_HEADERS,
singletonMap);

Great, the Exception is then RESOLVED ;)


Biblio:
- http://blog.sanaulla.info/2012/11/28/unsupportedoperation-exception-while-using-map-in-java/