I seemed to get the following exception when trying to deploy my application:
Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 2 counts of IllegalAnnotationExceptions
java.util.List is an interface, and JAXB can't handle interfaces.
this problem is related to the following location:
at java.util.List
at private java.util.List foobar.alkohol.register.webservice.jaxws.GetRelationsFromPersonResponse._return
at foobar.alkohol.register.webservice.jaxws.GetRelationsFromPersonResponse
java.util.List does not have a no-arg default constructor.
this problem is related to the following location:
at java.util.List
at private java.util.List foobar.alkohol.register.webservice.jaxws.GetRelationsFromPersonResponse._return
at foobar.alkohol.register.webservice.jaxws.GetRelationsFromPersonResponse
My code worked just well until I changed the return type from List to List<List<RelationCanonical>>
Here is the partial webservice:
@Name("relationService")
@Stateless
@WebService(name = "RelationService", serviceName = "RelationService")
@SOAPBinding(style = SOAPBinding.Style.DOCUMENT, use = SOAPBinding.Use.LITERAL, parameterStyle = SOAPBinding.ParameterStyle.WRAPPED)
public class RelationService implements RelationServiceLocal {
private boolean login(String username, String password) {
Identity.instance().setUsername(username);
Identity.instance().setPassword(password);
Identity.instance().login();
return Identity.instance().isLoggedIn();
}
private boolean logout() {
Identity.instance().logout();
return !Identity.instance().isLoggedIn();
}
@WebMethod
public List<List<RelationCanonical>> getRelationsFromPerson(@WebParam(name = "username")
String username, @WebParam(name = "password")
String password, @WebParam(name = "foedselsnummer")
String... foedselsnummer) {
......
......
......
}
I have also tried by removing the @SOAPBinding and trying default, but the same result occurs.
Appreciate any help
UPDATE
I want to note out something. I changed all List to ArrayList, and then it compiled. The reason why I say compiled and not worked is because it behaves strange. I get an Object of type: RelationServiceStub.ArrayList but the object has no get methods or does not behave as a List either. I also tried to cast it to a List but that didnt work.
Note that this is after I have used Axis 2 and wsdl2java So yes, now it compiles, but I dont know how to get the data out.
In my understanding, you will not be able to process a plain List
via JAXB, as JAXB has no idea how to transform that into XML.
Instead, you will need to define a JAXB type which holds a List<RelationCanonical>
(I'll call it Type1
), and another one to hold a list of those types, in turn (as you're dealing with a List<List<...>>
; I'll call this type Type2
).
The result could then be an XML ouput like this:
<Type2 ...>
<Type1 ...>
<RelationCanonical ...> ... </RelationCanonical>
<RelationCanonical ...> ... </RelationCanonical>
...
</Type1>
<Type1>
<RelationCanonical ...> ... </RelationCanonical>
<RelationCanonical ...> ... </RelationCanonical>
...
</Type1>
...
</Type2>
Without the two enclosing JAXB-annotated types, the JAXB processor has no idea what markup to generate, and thus fails.
--Edit:
What I mean should look somewhat like this:
@XmlType
public class Type1{
private List<RelationCanonical> relations;
@XmlElement
public List<RelationCanonical> getRelations(){
return this.relations;
}
public void setRelations(List<RelationCanonical> relations){
this.relations = relations;
}
}
and
@XmlRootElement
public class Type2{
private List<Type1> type1s;
@XmlElement
public List<Type1> getType1s(){
return this.type1s;
}
public void setType1s(List<Type1> type1s){
this.type1s= type1s;
}
}
You should also check out the JAXB section in the J5EE tutorial and the Unofficial JAXB Guide.