This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
Not sure what you mean by "consuming", but there are quite a few libraries that allow Java to access COM components. Some of them are even Open Sourced. Just google "Java COM bridge", for a detailed list.