why Java HTTP request with the token always unauthorised

I tried the following code. Basically, this code is taken from here. There he claims it works for him. But it didn't work for me.

private void doHttp() {
    try {
        String url = "http://myurl.com/cc/companies/3.88";
        String token = "eyJ6aXAiOiJERUYiLCJlbmMiOiJBMjU2R0NNIiwiYWxnIjoiZGlyIn0.....";
        URL object = new URL(url);
        HttpURLConnection con = (HttpURLConnection) object.openConnection();
        con.setDoInput(true);
        con.setRequestMethod("GET");
        con.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
        con.setRequestProperty("Accept", "application/json");
        con.setRequestProperty("Authorization:", "Token " + token);


        StringBuilder sb = new StringBuilder();
        int HttpResult = con.getResponseCode();
        if (HttpResult == HttpURLConnection.HTTP_OK) {
            BufferedReader br = new BufferedReader(
                    new InputStreamReader(con.getInputStream(), "utf-8"));
            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            br.close();
        } else {
            System.out.println(con.getResponseMessage());
        }
    } catch (NotFoundException e) {
        if (e.getResponse().getStatus() == 404) {
            System.out.printf(e.getMessage());
        } else {
            System.out.printf(e.getMessage());
        }
    } catch (WebApplicationException e) {
        System.out.printf(e.getMessage());
    } catch (IOException e) {
        e.printStackTrace();
    } catch (Exception e) {
        System.out.printf(e.getMessage());
    }

It always fails with exception message Illegal character(s) in message header field: Authorization:

I try the same request from the terminal as curl -X GET http://myurl.com/cc/companies/3.88 -H "accept: application/json" -H "X-Access-Token:eyJ6aXAiOiJERUYiLCJlbmMiOiJBMjU2..." This works fine.

So how can I make the same from the Java code?

Updated question

After JB Nizet's comment, I managed to make the GET and DELETE request working fine. But now I would like to try POST as well. The question comes again in curl is fine as:-

curl -X POST "http://myurl/app/operator" -H "accept: application/json" -H "X-Access-Token: eyJ6aXAiOiJERUYiLCJlbmMiOiJBMjU2R0NNIiwiYWxnIjoiZGlyIn0..GZ-7sXRhKYHFPKBd.a7tQ2aTYqaKyCp-"  **-H "Content-Type: application/json" -d** "{ \"type\": \"OPERATOR\", \"dcpId\": 42968, \"externalId\": null, \"secondaryExternalId\": null, \"name\": \"Connexion\", \"configurationStage\": \"ACTIVE\", \"nodeStatus\": \"SUCCESS\", \"nodeUser\": null, \"serviceRequest\": null, \"additionalInfo\": null, \"serviceId\": null, \"operatorNo\": null, \"operator\": { \"dcpId\": null, \"name\": null, \"operatorNo\": null}"    

I don't know how to set the body or -d "{ \"type\": \"OPERATOR\", \"dcpId\": 42968, \"externalId\": null, \"secondaryExternalId\": null, \"name\": \"Connexion\", \"configurationSt.......} by the JAVA code.

I coulnd't find relavent API document for this. Please kindly let me know how can do it in Java. Thanks in advance!