I created a Generic Portlet that calls a Web Service Connector based on a flow created on the Integration Server.
The signature of the flow consists of 4 parameters, 3 of them type string, the other one type java.util.Date.
On the submit action of the form I pass the web service connector input values and call the refresh method.
On the screen I get the following error:
And on the Server Log I receive:
The flow does the following:
Maps the input parameters to a publishable document called
#webMethods#webMethods-BPMS#MWS-CAF-Task-Engine