public static ObjectMapper createMapper(JsonFactoryBuilder jsonFactoryBuilder) {
        JsonFactory jsonFactory = jsonFactoryBuilder
                // This changes in 2.16, needs to consider what to do
                .configure(StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION, true)
                .build();
        return new ObjectMapper(jsonFactory);
    }
Utility class to get jackson json parsers with common settings.
TODO Belong in vespajlib, but due to OSGI resides here.
There is also a copy in testutil for testing in non OSGI modules
container-core/src/main/java/com/yahoo/json/Jackson.java