Trying to upgrade my Learning Java, 3rd Edition to ebook, I get this error after clicking the Ebook Upgrade button:
Invalid Product(s) - (SKU-KIT-9780596802172.EBOOK).
Your shopping cart is empty.
What's up with that?
Help get this topic noticed by sharing it on Twitter, Facebook, or email.
The reason you couldn't get the ebook upgrade for that book is that the ebook for the 3rd edition is out of print. There is a 5th edition in the works right now and the 4th is the current edition.
Since that 3rd edition is out of print, and you can't buy it, I went ahead and added it to your account.
O'Reilly Customer Service