Description Joachim Kanbach 2016-05-09 08:41:24 EDT

I'd like to use a JAXB mapping like this:

@XmlElementWrapper( name = "value" )
@XmlElementRef
private Collection<? extends Supertype> collection;

I need to use @XmlElementRef instead of @XmlElement because there are many different sub types extending the class I named "Supertype" here, and I don't want to use the xsi:type feature for inheritance, respectively the "type" attribute for JSON.

If I use @XmlElement instead, the resulting JSON looks like this:

"value": [ {"type": "someSubtype", "id": [...]} ]

So in this case, JSON_WRAPPER_AS_ARRAY_NAME works as expected.

With @XmlElementRef, the result looks like this:

"value": {"someSubtype": [ {"id": [...]} ] }

So I get the name of the referred element as an additional wrapper around the array, which corresponds to the description of JSON_WRAPPER_AS_ARRAY_NAME being set to false, here: http://www.eclipse.org/eclipselink/api/2.5/org/eclipse/persistence/jaxb/MarshallerProperties.html#JSON_WRAPPER_AS_ARRAY_NAME

Instead, I'd expect the result to be

"value": { [ {"id": [...]} ] }

Maybe this bug is related to https://bugs.eclipse.org/bugs/show_bug.cgi?id=410095 ?