How do I know what version of servlet-api.jar I have?

Question

I downloaded a copy of servlet-api.jar from java2s.com. How do I know what version it is? There\'s no reference on the site.

EDIT

Ah. Apo

Answer 1

you can get it from META-INF, you can explore the content of jar file using win rar or such archiving utils something like.

Name: javax/servlet/
Specification-Title: Java API for Servlets
Specification-Version: 2.4  

I personally prefer maven repo to download jar from.