#89 Maps with non-String keys throw ClassCastException

[Anonymous]

In json-lib 2.2.2, I was able to use a non-string key in a map (e.g. an Enum) However, json-lib 2.2.3 appears to have made this illegal and throws a ClassCastException.

Perhaps there should be an option in the JsonConfig that allows non-String keys. Enabling this would revert to the old behavior. Namely:

String key = (k instanceof String) ? (String) k : String.valueOf( k );

[aalmiray]

Allowing non-String keys was a mistake in the first place, however a backwards compatible flag does not sound that far fetched. Non-String keys will be disallowed by default though.

[Shifra]

I'm getting this error even when my app thinks I'm passing keys that are strings. I'm going to monkey-patch locally for us so that JSONObject will toString any key that it thinks is not a string... it's an extremely simple patch, but let me know if you want the code snippet.

[aalmiray]

Added new flag allowNonStringKeys to JsonConfig. Keys will always be converted to Strings using String.valueOf(), this flag will prevent throwing a CCE when true, default setting is false.