Google jar search

I stumbled upon a Google setting some time ago that would get Google to list a number of Jar files that contained a specified Java class, i.e. if I googled for "org.hibernate.EntityMode", it woukld list "hibernate3.jar" and I could download it. I reset my PC and now cant locate this facility. Anybody know where/what it is?

Are you talking about Google Code Search? [broken link removed]

No, it was a search facility that specifically listed java jar files.

Quick google search has come uo with [broken link removed] where you use the "filetype:jar" expression to limit its search to jar files. Is this the one you're looking for ?