Portal WebService and Complex Parameter (Array) Response

Question

Hello Colleagues,
i use the function „Create WebService from Portal Service“ in the NWDS.
It Works fine for methods that take or give flat Parameters like this:
public String getValue(String value) {
return value;
But I need to use Complex structures. My first try was this method :
public String[] getArray(String value) {
String[] valueArray = new String[5];
for (int i = 0; i < valueArray.length; i++) {
      valueArray<i> = value;
return valueArray;
This works too, but i only have unnamed parameters. Also there is no semantic in my parameters and i can not identify them (only by order). So i need to take a method like this:
public File[] getFiles(String value) {
File[] files = new File[5];
for (int i = 0; i < files.length; i++) {
    files<i>.setFilename("filename " + i);
    files<i>.setCreated(new Date(System.currentTimeMillis()));
    files<i>.setDescription("description " + i);
    files<i>.setLastModified(new Date(System.currentTimeMillis()));
    files<i>.setContent(new byte[20]);
return files;
I put the class "File" in the same package as the Service class. I also make a Interface to the File class.
When i deploy this to my Portal i get an "error_NoClassDefFoundError" in the soap response. What is the right way to make an webservice from a Portalservice with an complex parameter response?
Every hint is welcome.
Best regards,
Patrick
http://www.mindsquare.de

Answer 1

<prt0:stackTrace>java.lang.NoClassDefFoundError: [Lde/hoefer/test/File;&#xd;
     at java.lang.Class.getDeclaredMethods0(Native Method)&#xd;
     at java.lang.Class.privateGetDeclaredMethods(Class.java:1655)&#xd;
     at java.lang.Class.getMethod0(Class.java:1901)&#xd;
     at java.lang.Class.getMethod(Class.java:984)&#xd;
     at com.sapportals.portal.prt.service.soap.processor.MethodsAuthorizedProcessor.isMethodAuthorized(MethodsAuthorizedProcessor.java:161)&#xd;
     at com.sapportals.portal.prt.service.soap.processor.InvokerProcessor.generateCallOnPortalService(InvokerProcessor.java:194)&#xd;
     at com.sapportals.portal.prt.service.soap.processor.InvokerProcessor.invokePortalSOAPProcessor(InvokerProcessor.java:146)&#xd;
     at com.sapportals.portal.prt.service.soap.SOAPServiceManager.invokeProcessor(SOAPServiceManager.java:228)&#xd;
     at com.sapportals.portal.prt.service.soap.SOAPServiceManager.invokeMethodOnServices(SOAPServiceManager.java:209)&#xd;
     at com.sapportals.portal.prt.service.soap.SOAPServiceManager.consumeSOAPMessage(SOAPServiceManager.java:133)&#xd;
     at com.sapportals.portal.prt.service.soap.SOAPConnection.processSOAPPost(SOAPConnection.java:271)&#xd;
     at com.sapportals.portal.prt.service.soap.SOAPConnection.handleRequest(SOAPConnection.java:185)&#xd;
     at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:522)&#xd;
     at java.security.AccessController.doPrivileged(Native Method)&#xd;
     at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:405)&#xd;
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)&#xd;
     at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:156)&#xd;
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)&#xd;
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)&#xd;
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)&#xd;
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)&#xd;
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)&#xd;
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)&#xd;
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)&#xd;
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)&#xd;
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)&#xd;
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)&#xd;
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)&#xd;
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)&#xd;
     at java.security.AccessController.doPrivileged(Native Method)&#xd;
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)&#xd;
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)&#xd;</prt0:stackTrace>
        </prt0:error_NoClassDefFoundError>