Checking of SOAP action in SoapActionInInterceptor: regression in proxy services

[Andrei Shakirin]

Hi,

I have a bit regression under 2.7.7 because of changes in 
SoapActionInInterceptor 
(https://fisheye6.atlassian.com/changelog/cxf?cs=1368559 )

SoapActionInInterceptor requires that the SOAPAction exactly matches to the 
service operation.
The problem is that there are some scenarios where the proxies using Provider<> 
API process requests from different clients with any SOAPAction.

If you don't see security issue in that, I would ignore the check if 
SoapOperationInfo action has default SOAP action (configured as empty in 
SoapBindingConfiguration):

Instead:
SoapOperationInfo soi = boi.getExtensor(SoapOperationInfo.class);
            if (soi == null || action.equals(soi.getAction())) {
                return;
            }

Will be:

SoapOperationInfo soi = boi.getExtensor(SoapOperationInfo.class);
            if ((soi == null) || StringUtils.isEmpty(soi.getAction()) || 
action.equals(soi.getAction())) {
                return;
            }

WDYT?

Regards,
Andrei.