throws IOException, HttpMessageNotWritableException {
JsonEncoding encoding = getEncoding(outputMessage.getHeaders().getContentType());
JsonGenerator jsonGenerator =
objectMapper.getJsonFactory().createJsonGenerator(outputMessage.getBody(), encoding);
if (prefixJson) {
jsonGenerator.writeRaw("{} && ");
}
objectMapper.writeValue(jsonGenerator, o);
}
private JsonEncoding getEncoding(MediaType contentType) {