J&J easily beat estimates on the top and bottom lines.Shares of J&J Snack Foods (JJSF 16.37%), the maker of SuperPretzels and other event snack staples, jumped today after the company delivered a strong second-quarter earnings report.The stock finished today's session up 16.4%.J&J Snack Foods shinesJ&J reported revenue growth of 6.5% to $359.7 million, beating estimates at $341.1 million.The company said top-line growth was driven by higher volumes in core products and brands, as well as strong performance ...