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kotlinlang

Maybe use `lateinit` on those properties?

<https://kotlinlang.org/docs/reference/properties.html#late-initialized-properties-and-variables>

Well, my expectation is that when Gson puts a null to, e.g. objectType, I should have an exception thrown. To my understanding lateinit would not do it.

GSON doesn't throw exceptions for missing fields out of the box like moshi does - you'd need to implement a custom deserializer, which would do a null check, then call into the default impl.

Although I'm rather surprised kotlin doesn't complain / throw an exception when you try to access those fields or when they are set?

<@UKTBFFKCG> no, kotlin is not complaining, at least in my code...