Jdeveloper- web service- can't produce wsdl for java List

Question

Hi-
I think this is a jdeveoper bug. It looks like the same bug as #4706306 in Jdeveloper 10g bugs.
There is a workaround suggest to use additional classes in the web service. But it does not work on 11g.
Details of the problem ........
I am trying to create a web service and client using jdeveoper 11g.
For some reason, the wsdl generated from the jdeveoper is incorrect. My java classes used List.
Apparently, jdeveoper does not like List . I can reproduce the problem using three files as attached.
the files are 1)Baby.java, 2)Papa.java, and 3)MyCall.java. The webservice is MyCall Class and the web method is getPapa().
After I created the web service and its wsdl, I then used the wsdl to create a client. then files are generated from the
wsdl for client . One of the file as in 4)Papa.java has a wrong List<Object>. It should be List<Baby>.
I can't move forward because of this problem. If any one can help, I'll be very appreciated.
Thanks!
Jason
1) ---- Baby.java-------------------
package yexp;
public class Baby
private String name;
public void setName(String name)
this.name = name;
public String getName()
return name;
2) Papa.java ---------------------
package yexp;
import java.util.List;
import java.util.ArrayList;
public class Papa
List<Baby> babyList;
public List<Baby> getBabyList()
return babyList;
public void setBabyList(List<Baby> babyList)
this.babyList = babyList;
3) MyCall.java ------------------------------------------------
package yexp;
import java.util.List;
import java.util.ArrayList;
public class MyCall
public Papa getPapa()
Baby baby = new Baby();
baby.setName("mmmBaby");
List<Baby> babyList = new ArrayList<Baby>();
babyList.add(baby);
Papa papa = new Papa();
papa.setBabyList(babyList);
return papa;
4) Papa.java from client ---------------
aquilo#cat Papa.java
package z;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlType;
* <p>Java class for papa complex type.
* <p>The following schema fragment specifies the expected content contained within this class.
* <pre>
* &lt;complexType name="papa">
* &lt;complexContent>
* &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
* &lt;sequence>
* &lt;element name="babyList" type="{http://www.w3.org/2001/XMLSchema}anyType" maxOccurs="unbounded" minOccurs="0"/>
* &lt;/sequence>
* &lt;/restriction>
* &lt;/complexContent>
* &lt;/complexType>
* </pre>
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "papa", propOrder = {
"babyList"
public class Papa {
@XmlElement(nillable = true)
protected List<Object> babyList; //??????? PROBELM should be List<Baby> babyList
* Gets the value of the babyList property.
* <p>
* This accessor method returns a reference to the live list,
* not a snapshot. Therefore any modification you make to the
* returned list will be present inside the JAXB object.
* This is why there is not a <CODE>set</CODE> method for the babyList property.
* <p>
* For example, to add a new item, do as follows:
* <pre>
* getBabyList().add(newItem);
* </pre>
* <p>
* Objects of the following type(s) are allowed in the list
* {@link Object }
public List<Object> getBabyList() {
if (babyList == null) {
babyList = new ArrayList<Object>();
return this.babyList;
Edited by: jchen8996 on Apr 5, 2010 8:17 AM

Answer 1

Try using Collection instead of list so:
Collection<Baby> babyList = new ArrayList<Baby>();