Use default when passed value is null

[dri94]

When deserializing a json and we get a null value passed down, an annotation/setting should be allowed to instead use the default value. The following scenario will fail if deserialize because it is looking for a non-null value

{ 
"name": "john",
"number": null
}

data class Person(val name: String = "", val number: String ="")

If we had an annotation that specified to use default if null, the the following would deserialize correctly using the default value.

{ 
"name": "john",
"number": null
}

data class Person(val name: String = "", @UseDefault val number: String ="")

If this exists then please point me to the documentation :) Thanks.

[SpaceBison]

I think there should be an option to use default values if deserialization fails for any reason.

[pie-flavor]

I was shocked that the default behavior was anything other than that. I can't think of a case where you wouldn't want default values to replace nulls (and absent values to be null in nullable values).