Generate web service with complexType +sequence with NW Developer Studio

Question

Hello Sap guru
I have the following problem with NW04s/SAP NetWeaver Developer Studio 7.0.14
I wish to create a web service from an existing EJB (stateless session)
If I send a list of String, everything is OK
If I wish to return a List of classes instead of strings (same function in the Bean, just a small refinement), I get an empty answer from the deployed web service
After looking in the forum, it seems that I should not send a List but a class that encapsulate the list in my EJB.
Even if I make the classes serializable, it does not works (i.e. I get an empty answer when I call the service).
The VI wizard finds my function but I did not found any way to tell the IDE how is made my objects inserted in the list.
1)     Have I forgotten something in the building of the VI (or somewhere else)
2)     Am I using the right way to build a web service? Should I make a WSDL and XSD and creating the required java classes. In this case how can I import the wsdl/xsd in developer studio ? Can I generate a VI form these files ??
3)     Is there an example that shows what I am trying to do. There must be one but I could not find any

Answer 1

It is now working
Regenerating everything form scratch made the stuff working
From my experience:
- the function you call in the web service should be available in remote and local interface
- ArrayList or [] both works. The classes returned inside the List should implement Serializable
- you do not have anything to change in the VI or any SAP file