J2EE PayPal Checkout solutions

For those who is looking for J2EE PayPal Checkout solutions, we would like to offer our product - PayPal Checkout (with IPN):
http://www.softwarebasic.com/
Free download:
http://www.softwarebasic.com/products.html#demo
PayPal Checkout
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Encapsulates PayPal website payment processing into a single back end component . This easy-to-use component enables J2EE developers to seamlessly integrate their own shopping cart instead of the standard PayPal shopping cart with PayPal Payment processing in minutes!
PayPal Checkout IPN
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Includes all PayPal Checkout features plus Instant Payment Notification (IPN) handling. This easy-to-use component enables J2EE developers to add IPN listeners to every checkout. When PalPal send back confirmation of payment, listeners will be notified. It follows Java 2 standard event model
-Richard
Software Basic
http://www.softwarebasic.com/