JSON hell! Dont ask, I can't do anything about the shit I receive...

1test.cs

class Baz<T>
{
    [JsonConverter(typeof(BrokenConverter))]
    public T[] Foo { get; set; }
}

class Foo
{
    public string Bar { get; set; }
}

[TestMethod]
public void Collection()
{
    var r = JsonConvert.DeserializeObject<Baz<Foo>> ("{'Foo':[{'Bar': 'one'}]}");
    Assert.AreEqual(1, r.Foo.Length);
    r = JsonConvert.DeserializeObject<Baz<Foo>>("{'Foo':[{'Bar': 'one'},{'Bar': 'two'}]}");
    Assert.AreEqual(2, r.Foo.Length);
}

[TestMethod]
public void One()
{
    var r = JsonConvert.DeserializeObject<Baz<Foo>>("{'Foo': {'Bar': 'one'}}");
    Assert.IsNotNull(r.Foo);
    Assert.AreEqual(1, r.Foo.Length);
}

[TestMethod]
public void None()
{
    var r = JsonConvert.DeserializeObject<Baz<Foo>>("{'Foo':{}}");
    Assert.IsNotNull(r.Foo);
    Assert.AreEqual(0, r.Foo.Length);
}

2converter.cs

class BrokenConverter : JsonConverter
{
    public override bool CanConvert(Type objectType)
    {
        throw new NotImplementedException();
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        if (reader.TokenType == JsonToken.StartArray)
        {
            var r = serializer.Deserialize(reader, objectType);
            return r;
        }
        else
        {
            var o = serializer.Deserialize<dynamic>(reader) as JObject;
            if (o.HasValues)
            {
                var r = Activator.CreateInstance(objectType, 1) as Array;
                var s = serializer.Deserialize(new JTokenReader(o), objectType.GetElementType());
                r.SetValue(s, 0);
                return r;
            }
            else
            {
                return Activator.CreateInstance(objectType, 0);
            }
        }            
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        throw new NotImplementedException();
    }
}