-Runtime error: Aborted (../lib/serialization/serialization.nit:109)
-# Nit:
-<A: true a 0.123 1234 asdf false>
-
-# Json:
-{"__kind": "obj", "__id": 0, "__class": "A", "b": true, "c": {"__kind": "char", "__val": "a"}, "f": 0.123, "i": 1234, "s": "asdf", "n": null}
-
-# Back in Nit:
-<A: true a 0.123 1234 asdf false>
-
-# Nit:
-<B: <A: false b 123.123 2345 hjkl false> 1111 qwer>
-
-# Json:
-{"__kind": "obj", "__id": 0, "__class": "B", "b": false, "c": {"__kind": "char", "__val": "b"}, "f": 123.123, "i": 2345, "s": "hjkl", "n": null, "ii": 1111, "ss": "qwer"}
-
-# Back in Nit:
-<B: <A: false b 123.123 2345 hjkl false> 1111 qwer>
-
-# Nit:
-<C: <A: true a 0.123 1234 asdf false> <B: <A: false b 123.123 2345 hjkl false> 1111 qwer>>
-
-# Json:
-{"__kind": "obj", "__id": 0, "__class": "C", "a": {"__kind": "obj", "__id": 1, "__class": "A", "b": true, "c": {"__kind": "char", "__val": "a"}, "f": 0.123, "i": 1234, "s": "asdf", "n": null}, "b": {"__kind": "obj", "__id": 2, "__class": "B", "b": false, "c": {"__kind": "char", "__val": "b"}, "f": 123.123, "i": 2345, "s": "hjkl", "n": null, "ii": 1111, "ss": "qwer"}, "aa": {"__kind": "ref", "__id": 1}}
-
-# Back in Nit:
-<C: <A: true a 0.123 1234 asdf false> <B: <A: false b 123.123 2345 hjkl false> 1111 qwer>>
-
-# Nit:
-<D: <B: <A: false b 123.123 2345 new line ->
-<- false> 1111 f"\r\/> true>
-
-# Json:
-{"__kind": "obj", "__id": 0, "__class": "D", "b": false, "c": {"__kind": "char", "__val": "b"}, "f": 123.123, "i": 2345, "s": "new line ->\n<-", "n": null, "ii": 1111, "ss": "\tf\"\r\\\/", "d": {"__kind": "ref", "__id": 0}}
-
-# Back in Nit:
-<D: <B: <A: false b 123.123 2345 new line ->
-<- false> 1111 f"\r\/> true>
-
-Error: doesn't know how to deserialize class "Array[Object]"