MOXyJsonProvider bug when unmarshalling json array - json

Question

I have a simple jersey resource, UserContentManager, that processes a simple ContentInput class. Both classes are below. The postHello method works fine when called using curl -X POST -H "Content-Type: application/json" -d '{"id":1,"type":"a"}' localhost:50000/news/rest/hello but the putHello method is failing when called with curl -X PUT -H "Content-Type: application/json" -d '[{"id":1}]' localhost:50000/news/rest/hello
It is failing in MOXyJsonProvider:598 (the line in bold below) because when it is unmarshalled, it is unmarshalled to ArrayList<Property> instead of ArrayList<JAXBElement<Property>> as the code is expecting i.e. Object value = jaxbElement.getValue() is an ArrayList<Property> not ArrayList<JAXBElement> like the cast.
Is this a bug in Moxy or am I doing something wrong? The getArray method is working fine when returning an array. I have tried it with and without #XmlRootElement on the ContentInput class but the results are the same.
JAXBElement<?> jaxbElement = unmarshaller.unmarshal(jsonSource, domainClass);
if(type.isAssignableFrom(JAXBElement.class)) {
return jaxbElement;
} else {
Object value = jaxbElement.getValue();
if(value instanceof ArrayList) {
if(type.isArray()) {
ArrayList<JAXBElement> arrayList = (ArrayList<JAXBElement>) value;
int arrayListSize = arrayList.size();
Object array;
if(genericType instanceof GenericArrayType) {
array = Array.newInstance(JAXBElement.class, arrayListSize);
for(int x=0; x<arrayListSize; x++) {
Array.set(array, x, arrayList.get(x));
}
} else {
array = Array.newInstance(domainClass, arrayListSize);
for(int x=0; x<arrayListSize; x++) {
* Array.set(array, x, arrayList.get(x).getValue());*
}
}
return array;
#WebService
#Path("/hello")
public class UserContentManager {
#POST
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
public Response postHello(ContentInput input) {
input.setId(input.getId());
input.setType("clip" + input.getType());
ResponseBuilder builder = Response.ok();
builder.entity(input);
return builder.build();
}
#PUT
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
public ContentInput[] putHello(ContentInput [] input) {
return input;
}
#Path("/array")
#GET
#Produces(MediaType.APPLICATION_JSON)
public ContentInput[] getArray() {
return new ContentInput[] {
new ContentInput(),
new ContentInput()
};
}
}
public class ContentInput {
private int id;
private String type;
public ContentInput() {}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
}

Answer 1

Note: I'm the EclipseLink JAXB (MOXy) lead and a member of the JAXB (JSR-222) expert group.
You are hitting the following bug which we have fixed in EclipseLink 2.5.1:
http://bugs.eclipse.org/413760