Where to find which library belongs a class?

I wonder if there is any page where I could write a class name, for instance

javax.faces.view.facelets.TagHandler

And tells me in which .jar is included. Because as I can see in this class documentation this information is not included.

EDIT: using your pages, http://www.findjar.com/ or http://www.jarfinder.com/ I don't find the class. Can anybody help me on this?开发者_JAVA百科?

Thanks in advance

I found out thats: jsf-api-2.0.jar

you can download this jar here

http://download.java.net/maven/2/javax/faces/jsf-api/2.0/

Use findjar.com

findjar.com does that. But it can't find this class.

There is http://www.jarfinder.com/ , but if you have the library in your project, you can open it in your IDE and it will show where it belongs.

For this particular class - it is part of mojarra (JSF-RI) - see here

I'd try http://www.docjar.com/ . It finds one result for your class.