Generating jar file for tests with Java Web Start

[wiktorn]

To debug #11298 I'd like to check, how JOSM behaves when started by Java Web Start:

1. I create josm-custom.jar using ant dist
2. I put jnlp (attached) and jar file in c:\josm
3. When I start jnlp, I get following exception

   com.sun.deploy.net.JARSigningException: Found unsigned entry in resource: file:/c|/josm/josm-custom.jar
   

4. So I try to sign the jar. Fist I generate the key for signature (with a little help from ​http://docs.oracle.com/cd/E19798-01/821-1751/ghlgv/index.html):

"c:\Program Files\Java\jdk1.7.0_76\bin\keytool.exe" -genkey -alias signature -keyalg RSA -keystore josm.jks

5. Then I sign the jar using the command:

{{{"c:\Program Files\Java\jdk1.7.0_76\bin\jarsigner.exe" -keystore josm.jks -verbose josm-custom.jar signature
(...)

jar signed.

Warning:
The signer certificate will expire within six months.
No -tsa or -tsacert is provided and this jar is not timestamped. Without a timestamp, users may not be able to validate this jar after the signer certificate's expiration date (2015-07-09) or after any future revocation date.}}}

6. I start Java Web Start again, and then I get "Application blocked by Java Security"

7. Adding ​file:/// as exception in Java Configuration Security Panel doesn't help. When I host the jar on remote ​http:// url, it also doesn't help

[wiktorn]

JNLP file