Using BSON JsonReader to parse below JSON string got JsonParseException with error message "Failed to parse string as a date",  but this JSON string can be imported successfully using mongoimport. It looks like JsonReader using java8 java.time.format.DataFormatter.ISO_OFFSET_DATE_TIME to parse java string, is it possible to extend the the pattern to be more flexible?

{
    "_id": 1,
    "title": "Unlocking Android",
    "isbn": "1933988673",
    "pageCount": 416,
    "publishedDate": {
        "$date": "2009-04-01T00:11:00-0800"
    }
}