Yegor and Jeanne, first of all, thanks for your help.
Jeanne, I went to the link you posted (http://java.sun.com/developer/releases/petstore/
), clicked in Download, which moved myself to http://java.sun.com/developer/releases/petstore/
and finally, after I clicked in every links,, I got a message "NOT FOUND The page you were looking for doesn't exist" (http://java.net/projects/blueprints/servlets/ProjectDocumentList?folderID=4144&expandFolder=4144&folderID=3349
). What I had in my mind, it's to find some zip file to downloud whith EAR ou WAR and, possibility, some explanations in UML or even in texts tell me where was applied each Pattern from Blue Print. Even when I am logged in Java.Net and clicked in Get Source Code the conclusion is the same message "NOT FOUND ...". What I am doing wrong to get the Pet Store source, or did I make a mistake when I tried to download Pet Store as an example?
Yegor, I agree with you about "you should apply your own skills/experience in order to create one", but something whith help me a lot with the Gnag of Four Patterns, it was the examples I read in Paul Allen and Joseph Bambara. Other source, but only in portuguese, come from a site called Devmedia in my country. Both help me a lot to understand and start to apply the GoF patterns. It's true that I have so much to learn, but the begin with simple example make the things clearer.
If there is some site or eletronic magazine where I can find examples of JEE Pattern, I will be glad if somebody let me know it.