Appengine Maven Plugin - Endpoints Goal - Enable filtering on .discovery files

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create a Maven project with Google Endpoints goal generation
2. Using maven properties (${appengine.app.id}) in the appengine-web.xml
3. Generate the endpoints

What is the expected output? What do you see instead?
In the .discovery files, the maven property is not resolved: 
"protocol": "rest",
"baseUrl": "https://${appengine.app.id}.appspot.com/_ah/api/mystore/v1/",
"basePath": "/_ah/api/mystore/v1/",
"rootUrl": "https://${appengine.app.id}.appspot.com/_ah/api/",
"servicePath": "mystore/v1/",


What version of the product are you using? On what operating system?
- Eclipse Luna with Windows 8
- Java 7
- App Engine 1.9.17

Please provide any additional information below.

Hello, I gave you a small summary because you can find the full description in 
this question: 
http://stackoverflow.com/questions/27274142/appengine-maven-plugin-endpoints-goa
l-enable-filtering-on-discovery-files?noredirect=1#comment44096913_27274142

Original issue reported on code.google.com by [email protected] on 9 Jan 2015 at 2:59

[NicolaSpreafico]

Hello, about a year has passed, can I have any update on this issue?

Thanks