Description Iaroslav Savytskyi 2015-04-20 08:49:47 EDT

To work with Map adapter was created. It works fine with JAXB RI, but fails with MOXy: 

Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field MapEntry.key to [LMapEntry;

@XmlRootElement
public class Foo {
    @XmlJavaTypeAdapter(MapAdapter.class)
    public Map<String, Object> map;
}

public class MapAdapter extends XmlAdapter<MapEntry[], Map<String, Object>> {
    @Override
    public Map<String, Object> unmarshal(MapEntry[] v) throws Exception {
        Map<String, Object> map = new HashMap<>();
        for (MapEntry me : v)
            map.put(me.key, me.value);
        return map;
    }
    @Override
    public MapEntry[] marshal(Map<String, Object> v) throws Exception {
        MapEntry[] mes = new MapEntry[v.size()];
        int i = 0;
        for (Map.Entry<String, Object> entry : v.entrySet())
            mes[i++] = new MapEntry(entry.getKey(), entry.getValue());
        return mes;
    }
}

public class MapEntry {
    public String key;
    public Object value;

    public MapEntry() {}

    public MapEntry(String key, Object value) {
        this.key = key;
        this.value = value;
    }
}