Response encoding UTF-8 returns ISO-8859-1 encoded string --------------------------------------------------------- Key: WFLY-3376 URL: https://issues.jboss.org/browse/WFLY-3376 Project: WildFly Issue Type: Bug Security Level: Public(Everyone can see) Components: REST Affects Versions: 8.0.0.Final Environment: Win7, JDK8 Reporter: bene.net Assignee: Stuart Douglas Attachments: output.txt, RRResourceVersion.java The REST response should be "C3A4" in HEX instead of "E3". I didn't find a way to achieve this. It works like this in Jersey. Please see attached files as well. {code:title=RRResourceVersion.java} @GET @Produces(MediaType.TEXT_PLAIN) public Response getTextRepresentation(@PathParam("resource-version-id") String resourceVersionId) { Response response = null; try { String content = "ä"; byte[] utf8Arr = content.getBytes("UTF-8"); String hexString = RRResourceVersion.byteArray2Hex(utf8Arr); LOGGER.info("hexString="+hexString); String utf8Content = new String(utf8Arr, "UTF-8"); response = Response.status(Response.Status.OK).entity(utf8Content).type(MediaType.TEXT_PLAIN).encoding("UTF-8").build(); } catch (Throwable t) { LOGGER.error("Throwable caught. ", t); response = RestService.createResponse(MediaType.TEXT_PLAIN_TYPE, Response.Status.INTERNAL_SERVER_ERROR, RestService.throwable2String(t)); } return response; } {code} {noformat} HTTP/1.1 200 OK Content-Encoding: UTF-8 Connection: keep-alive X-Powered-By: Undertow 1 Server: Wildfly 8 Content-Type: text/plain Content-Length: 1 Date: Tue, 20 May 2014 09:31:43 GMT ä {noformat}