keystore file examples

[debugging]

Can someone show me what these keystore files should look like:

keystore_type: JCEKS
keystore: /data/app/secrets/mystore.jceks
keystore_password: sekret

I currently have those 3 lines in my jetpack.yml file, but they are commented out.
When I java -jar start.jar it asks me for "org.eclipse.jetty.ssl.password " which I just leave blank and hit enter.

What does .jceks look like? I'm assuming these are ssl related settings??