Uses of javax.faces.PROJECT_STAGE

Question

I wanted to understand impact of \'javax.faces.PROJECT_STAGE\' property for a JSF application. A nice use case was presented in below links

https://dzone.com/article

Answer 1

According to the comment by wutzebaer for this linked post the javax.faces.PROJECT_STAGE property may control whether or not certain features are enabled (such as resource caching).