[SignServer-develop] Demo app: Worker Not Found: PDFSigner, XMLSigner

[And I. <and...@gm...>]

Hello,

I'm trying to get SignServer 4.0 CE up using WildFly9 (hosted in MS Azure
Ubuntu 17.04) for evaluation purposes. I have followed installation
instructions and managed to have signserver.ear successfully deployed. The
app server starts and I can access SignServer via local URL (
http://localhost:4457/signserver) .

However, when I navigate to /signserver/demo/pdfsign.jsp and click on the
Submit button to invoke PDFSigner I get redirected to
/signserver/worker/PDFSigner and the following error is displayed:

HTTP Status 404 - Worker Not Found

The exact message from logs is this:

10:54:38,477 INFO  [org.signserver.server.log.SignServerLog4jDevice]
(default task-24) EVENT: PROCESS; OUTCOME: FAILURE; MODULE: WORKER;
ADMINISTRATOR: Client user; ISSUER: null; SERIAL_NUMBER: null; WORKER_ID:
null; EXCEPTION: No such worker: PDFSigner/; PROCESS_SUCCESS: false;
LOG_TIME: 1498474478472; LOG_ID: 82e250f4-e4ca-4281-93dc-dfdf70819161;
CLIENT_IP: xxx.xxx.xxx.xxx; REPLY_TIME:1498474478477

Next, if I simply reload the current signserver/worker/PDFSigner page I
dont' get 404 error, instead I get HTTP 400 code:

12:13:51,685 INFO  [org.signserver.web.GenericProcessServlet] (default
task-16) Bad request: Missing field 'data' in request

Why the PDFSigner worker is not found in the demo app while the app server
seems to start successfully without any critical exception (except for
https:// complaints). I have tried other demo pages and other workers like
XMLSigner: same stuff.

What config places should I check to enable the PDFSigner worker in the
demo app? Any help/hints would be much appreciated.

Thanks,
Andrew S.