When using Developer Studio CE, we can create a Web Service from a EJB Session Bean just using a Wizard.
Suppose the following EJB with a simple method called sum with two +int +parameters (number1 and number2).
To create a Web Service from this EJB just right click on Bean class and select Web Services -> Create Web ServiceTo solve it, just annotate the parameters with the @WebParam:
+Note: +This occurs on some releases of NWDS SP3, SP5. So try to update to last version, on the NWDS EHP1 this problem doesn't occurs.