> + Type type = ownerType.getType();
> + if (ownerType.getRawType() != declaring || !(type instanceof
> ParameterizedType))
> + return null;
> + Type keyType = ((ParameterizedType)
> type).getActualTypeArguments()[0];
> + Type valueType = ((ParameterizedType)
> type).getActualTypeArguments()[1];
> + TypeAdapter<?> keyAdapter = gson.getAdapter(TypeToken.get(keyType));
> + TypeAdapter<?> valueAdapter =
> gson.getAdapter(TypeToken.get(valueType));
> + return newAdapter(keyAdapter, valueAdapter);
> + }
> +
> + @SuppressWarnings("unchecked")
> + protected <K, V, T> TypeAdapter<T> newAdapter(TypeAdapter<K>
> keyAdapter, TypeAdapter<V> valueAdapter) {
> + return (TypeAdapter<T>) new ImmutableMapTypeAdapter<K,
> V>(keyAdapter, valueAdapter);
> + }
> + }
> +
> private static final class MapTypeAdapter<K, V> extends
> TypeAdapter<Map<K, V>> {
Waiddaminute...if I'm understanding this correctly, `MapTypeAdapter` _already_
[builds an immutable
map](https://github.com/jclouds/jclouds/blob/master/core/src/main/java/org/jclouds/json/internal/NullFilteringTypeAdapterFactories.java#L299-309)?
If that is correct, what is the difference here?
And if we **do** need a different adapter, is there any way to cut down on the
duplication between IMTA/MTA and IMTAF/MTAF?
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