WiseBlocks has released its Input Components Suite 2.0, a set of inputs focused around advanced masking and date inputs. An open-source input box with calculator is part of the suite; other capabilities focus on numeric and date inputs, as well as adding a spinner input. The toolkit is JSP and JSF compatible, in addition to many other technologies. There are two type of licenses available. The Standard edition ($99 USD) allows you to deploy the library on two websites ($49 USD for each additional website) while the Enterprise edition ($999 USD) allows you to deploy the library on an unlimited number of websites.

I like that MS-Money styled numeric inputs :automatic "," in "1,000,000.00" with fixed dot and drop down calculator. Just another argument for Swing vs WEB debate ;)