This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
What do you want to do with a JTree in a JSP? A JTree is a client-side Swing GUI component, used in a Frame or Window. A JSP is a server-side specification of how to generate a web page. I find it hard to imagine how you might use one with the other; can you give more details of what you are trying to achieve, maybe we can find another way for you to do it.