Gson does NOT throw exception when unknown Enum values are deserialized.

[Todd Chapman]

Hi all,

I have a gson object initialized with:

    Gson gson = new Gson();

When I call gson.fromJson(json_string, MyClass.class)  I expect a exception to be thrown since json_string contains an invalid value for an enum member. However no exception is thrown.

Do I need to configure the Gson object to be more strict in its deserialization?

Thanks!

-Todd

[Brandon Mintern]

I just ran into this same issue. I have attached a TypeAdapterFactory that you can register which will throw a JsonParseException wrapping an IllegalArgumentException when there is a bad enum value.

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