Jdeveloper 11.1.1.0.0 - Error when generating webservice from Collection or

Question

Hello.
I get the error when I like to publish a method which return a Collection..
for example I have a Class:
package in2;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.List;
import java.util.*;
import javax.jws.WebMethod;
import javax.jws.WebService;
public class servis {
    public servis() {
    public String hello() {
        return "PETER";
    public Collection vrniPodatke() {
        Collection l = new ArrayList();
        l.add ( new OptionList("PTER","VALENCIC"));
        return l;
    public int sestej (int a , int b) {
        return a+b;
==========
package in2;
    public class OptionList {
        String a;
        String b;
        public OptionList(String a, String b) {
            this.a = a;
            this.b = b;
        public void setA(String newa) {
            this.a = newa;
        public String getA() {
            return a;
        public void setB(String newb) {
            this.b = newb;
        public String getB() {
            return b;
    }The error I get is:
java.lang.RuntimeException: Cannot find namespace for: ns1
     at oracle.j2ee.ws.wsdl.extensions.oracle.schema.BaseSchemaElement.getQNameFromValue(BaseSchemaElement.java:185)
     at oracle.j2ee.ws.wsdl.extensions.oracle.schema.BaseSchemaElement.getAttributeValueAsQNameOrNull(BaseSchemaElement.java:173)
     at oracle.j2ee.ws.wsdl.extensions.oracle.schema.ElementSchemaElement.getTypeAsQName(ElementSchemaElement.java:63)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.SchemaValidator.validate(SchemaValidator.java:145)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.SchemaValidator.validateSequence(SchemaValidator.java:414)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.SchemaValidator.validateComplexType(SchemaValidator.java:224)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.SchemaValidator.validate(SchemaValidator.java:157)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validateElement(WSDLValidator.java:709)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validateParts(WSDLValidator.java:667)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validateMessage(WSDLValidator.java:644)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validateOutput(WSDLValidator.java:604)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validateOperations(WSDLValidator.java:596)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validatePortType(WSDLValidator.java:585)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validateDefinition(WSDLValidator.java:97)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLValidator.validate(WSDLValidator.java:68)
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLModeler.buildModel(WSDLModeler.java:247)
     at oracle.j2ee.ws.common.processor.config.ModelInfo.buildModel(ModelInfo.java:171)
     at oracle.j2ee.ws.common.processor.Processor.runModeler(Processor.java:73)
     at oracle.j2ee.ws.tools.wsa.AssemblerTool.run(AssemblerTool.java:126)
     at oracle.j2ee.ws.tools.wsa.WsdlToJavaTool.createModel(WsdlToJavaTool.java:471)
     at oracle.j2ee.ws.tools.wsa.Util.createDeploymentDescriptors(Util.java:913)
     at oracle.jdeveloper.webservices.model.generator.GenerateDescriptors.action(GenerateDescriptors.java:146)
     at oracle.jdeveloper.webservices.model.java.generator.JavaEjbGenerateDescriptors.action(JavaEjbGenerateDescriptors.java:78)
     at oracle.jdeveloper.webservices.model.generator.GeneratorAction.run(GeneratorAction.java:151)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153)
     at java.awt.Dialog$1.run(Dialog.java:525)
     at java.awt.Dialog$2.run(Dialog.java:553)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.awt.Dialog.show(Dialog.java:551)
     at java.awt.Component.show(Component.java:1300)
     at java.awt.Component.setVisible(Component.java:1253)
     at oracle.bali.ewt.dialog.JEWTDialog.runDialog(Unknown Source)
     at oracle.bali.ewt.dialog.JEWTDialog.runDialog(Unknown Source)
     at oracle.ide.dialogs.ProgressBar.start(ProgressBar.java:358)
     at oracle.ide.dialogs.ProgressBar.start(ProgressBar.java:222)
     at oracle.ide.dialogs.ProgressBar.start(ProgressBar.java:194)
     at oracle.jdeveloper.webservices.model.Model.saveEditSync(Model.java:226)
     at oracle.jdevimpl.webservices.wizard.jaxrpc.WebServicesEditor.showDialog(WebServicesEditor.java:296)
     at oracle.jdevimpl.webservices.WebServicesAddin.findAndInvokeWizard(WebServicesAddin.java:1408)
     at oracle.jdevimpl.webservices.WebServicesAddin.handleEvent(WebServicesAddin.java:837)
     at oracle.ide.controller.IdeAction.performAction(IdeAction.java:506)
     at oracle.ide.controller.IdeAction.actionPerformedImpl(IdeAction.java:779)
     at oracle.ide.controller.IdeAction.actionPerformed(IdeAction.java:479)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
     at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
     at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
     at javax.swing.AbstractButton.doClick(AbstractButton.java:302)
     at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1000)
     at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1041)
     at java.awt.Component.processMouseEvent(Component.java:5501)
     at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
     at java.awt.Component.processEvent(Component.java:5266)
     at java.awt.Container.processEvent(Container.java:1966)
     at java.awt.Component.dispatchEventImpl(Component.java:3968)
     at java.awt.Container.dispatchEventImpl(Container.java:2024)
     at java.awt.Component.dispatchEvent(Component.java:3803)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
     at java.awt.Container.dispatchEventImpl(Container.java:2010)
     at java.awt.Window.dispatchEventImpl(Window.java:1778)
     at java.awt.Component.dispatchEvent(Component.java:3803)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
======================
What I'am doing wrong?

Answer 1

I don't know what is happening with Jdeveloper ?!?!
I have tryed the same example at home with Jdeveloper 11.1.1.0.0 Build JDEVADF_MAIN.DROP5_GENERIC_071218.2321.4796
All works fine.....
What you think could be wrong (in my first post)? Why I have received the error? and why the same project works on other computer?
can someone reply to my post?