------WebKitFormBoundary4Mf9l0fQLXFqw8SK Content-Disposition: form-data; name="imagem"; filename="Prancheta 4 cópia.jpg" Content-Type: image/jpeg

when the file name has accents, the multipart object is null

org.jboss.resteasy.plugins.providers.multipart.MultipartFormDataInput

input.getFormDataMap().get("imagem")