Java Development Tools

I read an article on the ORACLE mag called Producing Parameterized Pages. What I wanted to do was to have a table with links in one of the columns. A user will press a link and it will take you to a page where they can edit the information from that row. Everything works fine the first time I go in and edit a row. The second time I try to edit a different row and save I get the JBO-35007 error message. It works fine if I'm canceling out of the edit page and it works fine if I'm changing the same row. Am I missing something or is there somethign missing from the article.

Any help is appreciated!

Thanks!