How to detect current JSF-Version?

Question

I am developing a jsf-webapp and now I need to know what JSF-Version I am using? Where can I look this up? Thanks in advance.

Answer 1

steps

1: unzip javax.faces.jar (extract to a folder),go to extract folder\META-INF

2: in side META-INF ,open MANIFEST.MF.

3: search for Implementation-Version

for example : Implementation-Version: 2.1.6-SNAPSHOT